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twbs--bootstrap/scss/_spinners.scss
Gaël Poupard ece40bcd11
Slow down spinners when prefers-reduced-motion: reduce (#31882)
* feature(spinners): slow down spinners when prefers-reduced-motion

* docs(spinners): add reduced motion callout and mention slowing down in accessibility page

* Update spinners.md

* docs(accessibility): rewording

Co-authored-by: XhmikosR <xhmikosr@gmail.com>
Co-authored-by: Patrick H. Lauke <redux@splintered.co.uk>
2020-10-19 11:42:19 +03:00

65 lines
1.3 KiB
SCSS

//
// Rotating border
//
@keyframes spinner-border {
to { transform: rotate(360deg); }
}
.spinner-border {
display: inline-block;
width: $spinner-width;
height: $spinner-height;
vertical-align: text-bottom;
border: $spinner-border-width solid currentColor;
border-right-color: transparent;
// stylelint-disable-next-line property-disallowed-list
border-radius: 50%;
animation: spinner-border $spinner-animation-speed linear infinite;
}
.spinner-border-sm {
width: $spinner-width-sm;
height: $spinner-height-sm;
border-width: $spinner-border-width-sm;
}
//
// Growing circle
//
@keyframes spinner-grow {
0% {
transform: scale(0);
}
50% {
opacity: 1;
transform: none;
}
}
.spinner-grow {
display: inline-block;
width: $spinner-width;
height: $spinner-height;
vertical-align: text-bottom;
background-color: currentColor;
// stylelint-disable-next-line property-disallowed-list
border-radius: 50%;
opacity: 0;
animation: spinner-grow $spinner-animation-speed linear infinite;
}
.spinner-grow-sm {
width: $spinner-width-sm;
height: $spinner-height-sm;
}
@if $enable-reduced-motion {
@media (prefers-reduced-motion: reduce) {
.spinner-border,
.spinner-grow {
animation-duration: $spinner-animation-speed * 2;
}
}
}