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Responsive sticky top (#29158)

This commit is contained in:
jahanzaibsuleman07 2019-09-13 23:15:20 +05:00 committed by XhmikosR
parent 49469ca0dc
commit d99ff902f8
2 changed files with 23 additions and 5 deletions
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17
scss/helpers/_position.scss
View File

@ -18,10 +18,17 @@
z-index: $zindex-fixed;
}
.sticky-top {
@supports (position: sticky) {
position: sticky;
top: 0;
z-index: $zindex-sticky;
// Responsive sticky top
@supports (position: sticky) {
@each $breakpoint in map-keys($grid-breakpoints) {
@include media-breakpoint-up($breakpoint) {
$infix: breakpoint-infix($breakpoint, $grid-breakpoints);
.sticky#{$infix}-top {
position: sticky;
top: 0;
z-index: $zindex-sticky;
}
}
}
}

11
site/content/docs/4.3/helpers/position.md
View File

@ -31,3 +31,14 @@ Position an element at the top of the viewport, from edge to edge, but only afte
{{< highlight html >}}
<div class="sticky-top">...</div>
{{< /highlight >}}
## Responsive sticky top
Responsive variations also exist for `.sticky-top` utility.
{{< highlight html >}}
<div class="sticky-sm-top">Stick to the top on viewports sized SM (small) or wider</div>
<div class="sticky-md-top">Stick to the top on viewports sized MD (medium) or wider</div>
<div class="sticky-lg-top">Stick to the top on viewports sized LG (large) or wider</div>
<div class="sticky-xl-top">Stick to the top on viewports sized XL (extra-large) or wider</div>
{{< /highlight >}}