mirror of
https://github.com/twbs/bootstrap-sass.git
synced 2022-11-09 12:27:02 -05:00
545 lines
18 KiB
SCSS
545 lines
18 KiB
SCSS
//
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// Mixins
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// --------------------------------------------------
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// Utilities
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// -------------------------
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// Clearfix
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// Source: http://nicolasgallagher.com/micro-clearfix-hack/
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//
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// For modern browsers
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// 1. The space content is one way to avoid an Opera bug when the
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// contenteditable attribute is included anywhere else in the document.
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// Otherwise it causes space to appear at the top and bottom of elements
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// that are clearfixed.
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// 2. The use of `table` rather than `block` is only necessary if using
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// `:before` to contain the top-margins of child elements.
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@mixin clearfix() {
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&:before,
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&:after {
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content: " "; /* 1 */
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display: table; /* 2 */
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}
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&:after {
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clear: both;
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}
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}
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// Webkit-style focus
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@mixin tab-focus() {
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// Default
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outline: thin dotted #333;
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// Webkit
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outline: 5px auto -webkit-focus-ring-color;
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outline-offset: -2px;
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}
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// Center-align a block level element
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@mixin center-block() {
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display: block;
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margin-left: auto;
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margin-right: auto;
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}
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// Sizing shortcuts
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@mixin size($width, $height) {
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width: $width;
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height: $height;
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}
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@mixin square($size) {
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@include size($size, $size);
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}
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// Placeholder text
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@mixin placeholder($color: $input-color-placeholder) {
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&:-moz-placeholder { color: $color; } // Firefox 4-18
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&::-moz-placeholder { color: $color; } // Firefox 19+
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&:-ms-input-placeholder { color: $color; } // Internet Explorer 10+
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&::-webkit-input-placeholder { color: $color; } // Safari and Chrome
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}
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// Text overflow
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// Requires inline-block or block for proper styling
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@mixin text-overflow() {
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overflow: hidden;
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text-overflow: ellipsis;
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white-space: nowrap;
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}
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// CSS image replacement
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// Source: https://github.com/h5bp/html5-boilerplate/commit/aa0396eae757
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@mixin hide-text() {
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font: #{0/0} a;
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color: transparent;
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text-shadow: none;
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background-color: transparent;
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border: 0;
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}
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// CSS3 PROPERTIES
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// --------------------------------------------------
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// Single side border-radius
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@mixin border-top-radius($radius) {
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border-top-right-radius: $radius;
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border-top-left-radius: $radius;
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}
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@mixin border-right-radius($radius) {
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border-bottom-right-radius: $radius;
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border-top-right-radius: $radius;
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}
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@mixin border-bottom-radius($radius) {
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border-bottom-right-radius: $radius;
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border-bottom-left-radius: $radius;
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}
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@mixin border-left-radius($radius) {
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border-bottom-left-radius: $radius;
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border-top-left-radius: $radius;
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}
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// Drop shadows
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@mixin box-shadow($shadow) {
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-webkit-box-shadow: $shadow; // iOS <4.3 & Android <4.1
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box-shadow: $shadow;
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}
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// Transitions
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@mixin transition($transition) {
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-webkit-transition: $transition;
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transition: $transition;
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}
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@mixin transition-delay($transition-delay) {
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-webkit-transition-delay: $transition-delay;
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transition-delay: $transition-delay;
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}
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@mixin transition-duration($transition-duration) {
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-webkit-transition-duration: $transition-duration;
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transition-duration: $transition-duration;
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}
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@mixin transition-transform($transition) {
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-webkit-transition: -webkit-transform $transition;
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-moz-transition: -moz-transform $transition;
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-o-transition: -o-transform $transition;
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transition: transform $transition;
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}
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// Transformations
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@mixin rotate($degrees) {
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-webkit-transform: rotate($degrees);
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-ms-transform: rotate($degrees);
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transform: rotate($degrees);
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}
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@mixin scale($ratio) {
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-webkit-transform: scale($ratio);
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-ms-transform: scale($ratio);
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transform: scale($ratio);
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}
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@mixin translate($x, $y) {
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-webkit-transform: translate($x, $y);
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-ms-transform: translate($x, $y);
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transform: translate($x, $y);
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}
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@mixin skew($x, $y) {
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-webkit-transform: skew($x, $y);
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-ms-transform: skewX($x) skewY($y); // See https://github.com/twbs/bootstrap/issues/4885
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transform: skew($x, $y);
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}
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@mixin translate3d($x, $y, $z) {
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-webkit-transform: translate3d($x, $y, $z);
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transform: translate3d($x, $y, $z);
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}
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// Backface visibility
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// Prevent browsers from flickering when using CSS 3D transforms.
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// Default value is `visible`, but can be changed to `hidden`
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// See git pull https://github.com/dannykeane/bootstrap.git backface-visibility for examples
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@mixin backface-visibility($visibility){
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-webkit-backface-visibility: $visibility;
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-moz-backface-visibility: $visibility;
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backface-visibility: $visibility;
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}
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// Background clipping
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@mixin background-clip($clip) {
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background-clip: $clip;
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}
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// Background sizing
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@mixin background-size($size) {
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background-size: $size;
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}
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// Box sizing
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@mixin box-sizing($boxmodel) {
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-webkit-box-sizing: $boxmodel;
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-moz-box-sizing: $boxmodel;
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box-sizing: $boxmodel;
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}
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// User select
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// For selecting text on the page
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@mixin user-select($select) {
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-webkit-user-select: $select;
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-moz-user-select: $select;
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-ms-user-select: $select;
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-o-user-select: $select;
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user-select: $select;
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}
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// Resize anything
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@mixin resizable($direction) {
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resize: $direction; // Options: horizontal, vertical, both
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overflow: auto; // Safari fix
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}
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// CSS3 Content Columns
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@mixin content-columns($column-count, $column-gap: $grid-gutter-width) {
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-webkit-column-count: $column-count;
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-moz-column-count: $column-count;
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column-count: $column-count;
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-webkit-column-gap: $column-gap;
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-moz-column-gap: $column-gap;
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column-gap: $column-gap;
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}
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// Optional hyphenation
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@mixin hyphens($mode: auto) {
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word-wrap: break-word;
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-webkit-hyphens: $mode;
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-moz-hyphens: $mode;
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-ms-hyphens: $mode;
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-o-hyphens: $mode;
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hyphens: $mode;
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}
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// Opacity
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@mixin opacity($opacity) {
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opacity: $opacity;
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// IE8 filter
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$opacity-ie: ($opacity * 100);
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filter: #{alpha(opacity=$opacity-ie)};
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}
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// GRADIENTS
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// --------------------------------------------------
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// Horizontal gradient, from left to right
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//
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// Creates two color stops, start and end, by specifying a color and position for each color stop.
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// Color stops are not available in IE9 and below.
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@mixin gradient-horizontal($start-color: #555, $start-percent: 0%, $end-color: #333, $end-percent: 100%) {
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background-color: $end-color;
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background-image: -webkit-gradient(linear, $start-percent top, $end-percent top, from($start-color), to($end-color)); // Safari 4+, Chrome 2+
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background-image: -webkit-linear-gradient(left, color-stop($start-color $start-percent), color-stop($end-color $end-percent)); // Safari 5.1+, Chrome 10+
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background-image: -moz-linear-gradient(left, $start-color $start-percent, $end-color $end-percent); // FF 3.6+
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background-image: linear-gradient(to right, $start-color $start-percent, $end-color $end-percent); // Standard, IE10
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background-repeat: repeat-x;
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filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#{ie-hex-str($start-color)}', endColorstr='#{ie-hex-str($end-color)}', GradientType=1); // IE9 and down
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}
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// Vertical gradient, from top to bottom
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//
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// Creates two color stops, start and end, by specifying a color and position for each color stop.
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// Color stops are not available in IE9 and below.
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@mixin gradient-vertical($start-color: #555, $start-percent: 0%, $end-color: #333, $end-percent: 100%) {
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background-color: $end-color;
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background-image: -webkit-gradient(linear, left $start-percent, left $end-percent, from($start-color), to($end-color)); // Safari 4+, Chrome 2+
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background-image: -webkit-linear-gradient(top, $start-color, $start-percent, $end-color, $end-percent); // Safari 5.1+, Chrome 10+
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background-image: -moz-linear-gradient(top, $start-color $start-percent, $end-color $end-percent); // FF 3.6+
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background-image: linear-gradient(to bottom, $start-color $start-percent, $end-color $end-percent); // Standard, IE10
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background-repeat: repeat-x;
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filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#{ie-hex-str($start-color)}', endColorstr='#{ie-hex-str($end-color)}', GradientType=0); // IE9 and down
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}
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@mixin gradient-directional($start-color: #555, $end-color: #333, $deg: 45deg) {
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background-color: $end-color;
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background-repeat: repeat-x;
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background-image: -webkit-linear-gradient($deg, $start-color, $end-color); // Safari 5.1+, Chrome 10+
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background-image: -moz-linear-gradient($deg, $start-color, $end-color); // FF 3.6+
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background-image: linear-gradient($deg, $start-color, $end-color); // Standard, IE10
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}
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@mixin gradient-horizontal-three-colors($start-color: #00b3ee, $mid-color: #7a43b6, $color-stop: 50%, $end-color: #c3325f) {
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background-color: mix($mid-color, $end-color, 80%);
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background-image: -webkit-gradient(left, linear, 0 0, 0 100%, from($start-color), color-stop($color-stop, $mid-color), to($end-color));
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background-image: -webkit-linear-gradient(left, $start-color, $mid-color $color-stop, $end-color);
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background-image: -moz-linear-gradient(left, $start-color, $mid-color $color-stop, $end-color);
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background-image: linear-gradient(to right, $start-color, $mid-color $color-stop, $end-color);
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background-repeat: no-repeat;
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filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#{ie-hex-str($start-color)}', endColorstr='#{ie-hex-str($end-color)}', GradientType=1); // IE9 and down, gets no color-stop at all for proper fallback
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}
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@mixin gradient-vertical-three-colors($start-color: #00b3ee, $mid-color: #7a43b6, $color-stop: 50%, $end-color: #c3325f) {
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background-color: mix($mid-color, $end-color, 80%);
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background-image: -webkit-gradient(linear, 0 0, 0 100%, from($start-color), color-stop($color-stop, $mid-color), to($end-color));
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background-image: -webkit-linear-gradient($start-color, $mid-color $color-stop, $end-color);
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background-image: -moz-linear-gradient(top, $start-color, $mid-color $color-stop, $end-color);
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background-image: linear-gradient($start-color, $mid-color $color-stop, $end-color);
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background-repeat: no-repeat;
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filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#{ie-hex-str($start-color)}', endColorstr='#{ie-hex-str($end-color)}', GradientType=0); // IE9 and down, gets no color-stop at all for proper fallback
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}
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@mixin gradient-radial($inner-color: #555, $outer-color: #333) {
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background-color: $outer-color;
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background-image: -webkit-gradient(radial, center center, 0, center center, 460, from($inner-color), to($outer-color));
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background-image: -webkit-radial-gradient(circle, $inner-color, $outer-color);
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background-image: -moz-radial-gradient(circle, $inner-color, $outer-color);
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background-image: radial-gradient(circle, $inner-color, $outer-color);
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background-repeat: no-repeat;
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}
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@mixin gradient-striped($color: #555, $angle: 45deg) {
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background-color: $color;
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background-image: -webkit-gradient(linear, 0 100%, 100% 0, color-stop(.25, rgba(255,255,255,.15)), color-stop(.25, transparent), color-stop(.5, transparent), color-stop(.5, rgba(255,255,255,.15)), color-stop(.75, rgba(255,255,255,.15)), color-stop(.75, transparent), to(transparent));
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background-image: -webkit-linear-gradient($angle, rgba(255,255,255,.15) 25%, transparent 25%, transparent 50%, rgba(255,255,255,.15) 50%, rgba(255,255,255,.15) 75%, transparent 75%, transparent);
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background-image: -moz-linear-gradient($angle, rgba(255,255,255,.15) 25%, transparent 25%, transparent 50%, rgba(255,255,255,.15) 50%, rgba(255,255,255,.15) 75%, transparent 75%, transparent);
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background-image: linear-gradient($angle, rgba(255,255,255,.15) 25%, transparent 25%, transparent 50%, rgba(255,255,255,.15) 50%, rgba(255,255,255,.15) 75%, transparent 75%, transparent);
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}
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// Reset filters for IE
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//
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// When you need to remove a gradient background, don't forget to use this to reset
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// the IE filter for IE9 and below.
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@mixin reset-filter() {
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filter: progid:DXImageTransform.Microsoft.gradient(enabled = false);
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}
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// RETINA IMAGE SUPPORT
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// --------------------------------------------------
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// Short retina mixin for setting background-image and -size
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@mixin img-retina($file-1x, $file-2x, $width-1x, $height-1x) {
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background-image: url("${file-1x}");
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@media
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only screen and (-webkit-min-device-pixel-ratio: 2),
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only screen and ( min--moz-device-pixel-ratio: 2),
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only screen and ( -o-min-device-pixel-ratio: 2/1),
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only screen and ( min-device-pixel-ratio: 2),
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only screen and ( min-resolution: 192dpi),
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only screen and ( min-resolution: 2dppx) {
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background-image: url("${file-2x}");
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background-size: $width-1x $height-1x;
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}
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}
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// COMPONENT MIXINS
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// --------------------------------------------------
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// Horizontal dividers
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// -------------------------
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// Dividers (basically an hr) within dropdowns and nav lists
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@mixin nav-divider($color: #e5e5e5) {
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height: 1px;
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margin: (($line-height-computed / 2) - 1) 0;
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overflow: hidden;
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background-color: $color;
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}
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// Alerts
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// -------------------------
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@mixin alert-variant($background, $border, $text-color) {
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background-color: $background;
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border-color: $border;
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color: $text-color;
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hr {
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border-top-color: darken($border, 5%);
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}
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.alert-link {
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color: darken($text-color, 10%);
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}
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}
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// Button pseudo states
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// -------------------------
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// Easily pump out default styles, as well as :hover, :focus, :active,
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// and disabled options for all buttons
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@mixin btn-pseudo-states($color, $background, $border) {
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color: $color;
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background-color: $background;
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border-color: $border;
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&:hover,
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&:focus,
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&:active,
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&.active {
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background-color: darken($background, 5%);
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border-color: darken($border, 10%);
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}
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&.disabled,
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&[disabled],
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fieldset[disabled] & {
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&,
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&:hover,
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&:focus,
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&:active,
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&.active {
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background-color: $background;
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border-color: $border
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}
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}
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}
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// Labels
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// -------------------------
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@mixin label-variant($color) {
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background-color: $color;
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&[href] {
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&:hover,
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&:focus {
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background-color: darken($color, 10%);
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}
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}
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}
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// Navbar vertical align
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// -------------------------
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// Vertically center elements in the navbar.
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// Example: an element has a height of 30px, so write out `@include navbarVerticalAlign(30px);` to calculate the appropriate top margin.
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@mixin navbar-vertical-align($element-height) {
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margin-top: (($navbar-height - $element-height) / 2);
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margin-bottom: (($navbar-height - $element-height) / 2);
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}
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// Progress bars
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// -------------------------
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@mixin progress-bar-variant($color) {
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background-color: $color;
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.progress-striped & {
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@include gradient-striped($color);
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}
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}
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// Responsive utilities
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// -------------------------
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// More easily include all the states for responsive-utilities.less.
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// $parent hack because sass doesn't support tr& (without space)
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@mixin responsive-visibility($parent) {
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#{$parent} { display: block !important; }
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tr#{$parent} { display: table-row !important; }
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th#{$parent},
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td#{$parent} { display: table-cell !important; }
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}
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@mixin responsive-invisibility($parent) {
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#{$parent} { display: none !important; }
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tr#{$parent} { display: none !important; }
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th#{$parent},
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td#{$parent} { display: none !important; }
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}
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// Grid System
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// -----------
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// Centered container element
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@mixin container-fixed() {
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margin-right: auto;
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margin-left: auto;
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@include clearfix();
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}
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// Creates a wrapper for a series of columns
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@mixin make-row() {
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// Then clear the floated columns
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@include clearfix();
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@media (min-width: $screen-small) {
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margin-left: ($grid-gutter-width / -2);
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margin-right: ($grid-gutter-width / -2);
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}
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// Negative margin nested rows out to align the content of columns
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.row {
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margin-left: ($grid-gutter-width / -2);
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margin-right: ($grid-gutter-width / -2);
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}
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}
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// Generate the columns
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@mixin make-column($columns) {
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position: relative;
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// Prevent columns from collapsing when empty
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min-height: 1px;
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// Inner gutter via padding
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padding-left: ($grid-gutter-width / 2);
|
|
padding-right: ($grid-gutter-width / 2);
|
|
|
|
// Calculate width based on number of columns available
|
|
@media (min-width: $grid-float-breakpoint) {
|
|
float: left;
|
|
width: percentage(($columns / $grid-columns));
|
|
}
|
|
}
|
|
|
|
// Generate the column offsets
|
|
@mixin make-column-offset($columns) {
|
|
@media (min-width: $grid-float-breakpoint) {
|
|
margin-left: percentage(($columns / $grid-columns));
|
|
}
|
|
}
|
|
@mixin make-column-push($columns) {
|
|
@media (min-width: $grid-float-breakpoint) {
|
|
left: percentage(($columns / $grid-columns));
|
|
}
|
|
}
|
|
@mixin make-column-pull($columns) {
|
|
@media (min-width: $grid-float-breakpoint) {
|
|
right: percentage(($columns / $grid-columns));
|
|
}
|
|
}
|
|
|
|
// Generate the small columns
|
|
@mixin make-small-column($columns) {
|
|
position: relative;
|
|
float: left;
|
|
// Prevent columns from collapsing when empty
|
|
min-height: 1px;
|
|
// Inner gutter via padding
|
|
padding-left: ($grid-gutter-width / 2);
|
|
padding-right: ($grid-gutter-width / 2);
|
|
$max-width: ($grid-float-breakpoint - 1);
|
|
|
|
// Calculate width based on number of columns available
|
|
@media (max-width: $max-width) {
|
|
width: percentage(($columns / $grid-columns));
|
|
}
|
|
}
|
|
|
|
|
|
// Form validation states
|
|
//
|
|
// Used in forms.less to generate the form validation CSS for warnings, errors,
|
|
// and successes.
|
|
|
|
@mixin form-control-validation($text-color: #555, $border-color: #ccc, $background-color: #f5f5f5) {
|
|
// Color the label and help text
|
|
.help-block,
|
|
.control-label {
|
|
color: $text-color;
|
|
}
|
|
// Set the border and box shadow on specific inputs to match
|
|
.form-control {
|
|
padding-right: 32px; // to account for the feedback icon
|
|
border-color: $border-color;
|
|
@include box-shadow(inset 0 1px 1px rgba(0,0,0,.075)); // Redeclare so transitions work
|
|
&:focus {
|
|
border-color: darken($border-color, 10%);
|
|
$shadow: inset 0 1px 1px rgba(0,0,0,.075), 0 0 6px lighten($border-color, 20%);
|
|
@include box-shadow($shadow);
|
|
}
|
|
}
|
|
// Set validation states also for addons
|
|
.input-group-addon {
|
|
color: $text-color;
|
|
border-color: $border-color;
|
|
background-color: $background-color;
|
|
}
|
|
}
|