2021-08-30 22:44:00 +00:00
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@import '../../common/variables.less';
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@import 'mediawiki.mixins.less';
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2021-09-28 22:43:15 +00:00
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// Set an explicit height. This is needed for scroll padding and for other
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// sticky elements on the page. Setting the height in relative units enables
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2021-09-20 23:37:54 +00:00
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// the header's height to adapt to the browser's font size setting. Because
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// this variable is used to determine top offsets for sticky elements where the
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// font-size might not be 16px, using rem avoids the cascading effects of em units.
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@height-sticky-header: unit( 60px / @font-size-browser, rem );
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2021-09-28 22:43:15 +00:00
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2021-08-30 22:44:00 +00:00
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.vector-sticky-header {
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width: 100%;
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2021-09-28 22:43:15 +00:00
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height: @height-sticky-header;
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2021-08-30 22:44:00 +00:00
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position: fixed;
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top: 0;
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left: 0;
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right: 0;
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z-index: @z-index-header;
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transform: translateY( -100% );
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transition: transform 250ms linear;
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display: flex;
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align-items: center;
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max-width: @max-width-page-container + @padding-horizontal-page-container + @padding-horizontal-page-container;
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margin: 0 auto;
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background: @background-color-base;
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background-color: #fffffff7;
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border-bottom: 1px solid @colorGray14;
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// FIXME: Should this adapt to different thresholds? Ask Alex!
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padding: 6px 8px 6px 10px;
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justify-content: space-between;
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box-sizing: border-box;
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2021-09-07 19:48:23 +00:00
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// If the user has expressed their preference for reduced motion, then disable animation for the sticky header.
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@media ( prefers-reduced-motion: reduce ) {
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transition: none;
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}
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2021-08-30 22:44:00 +00:00
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@media ( min-width: @width-breakpoint-desktop ) {
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padding: 6px 25px;
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}
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2021-09-03 15:55:50 +00:00
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// T289714 Hide the sticky header at lower resolutions.
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@media ( max-width: @width-breakpoint-tablet ) {
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display: none;
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}
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2021-09-16 19:27:10 +00:00
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// Hide any open menus/search results unless sticky header is visible
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&:not( .vector-sticky-header-visible ) > div {
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display: none;
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}
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2021-08-30 22:44:00 +00:00
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&-visible {
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transform: translateY( 0% );
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}
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//
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// Layout
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//
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2021-09-24 21:00:32 +00:00
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&-start,
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&-end,
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&-icons,
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&-context-bar {
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2021-08-30 22:44:00 +00:00
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display: flex;
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align-items: center;
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}
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2021-09-24 21:00:32 +00:00
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&-start {
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flex-grow: 1;
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2021-08-30 22:44:00 +00:00
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}
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//
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// Components
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//
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&-context-bar {
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2021-09-24 21:00:32 +00:00
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border-left: 1px solid #c8c8c8;
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2021-08-30 22:44:00 +00:00
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margin: 0 15px;
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padding-left: 30px;
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2021-09-24 21:00:32 +00:00
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white-space: nowrap;
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2021-08-30 22:44:00 +00:00
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}
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&-context-bar-primary {
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2021-09-13 23:41:06 +00:00
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position: relative;
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max-width: 500px;
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2021-09-14 21:10:46 +00:00
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overflow: hidden;
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2021-10-26 02:25:40 +00:00
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padding-right: 10px;
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2021-09-13 23:41:06 +00:00
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// T289814 Fade out page titles longer than 500px.
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/* Stylelint rule broken for vendor prefixes: https://github.com/stylelint/stylelint/issues/1939 */
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/* stylelint-disable function-linear-gradient-no-nonstandard-direction */
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&:after {
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content: '';
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position: absolute;
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left: 480px;
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width: 100%;
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height: 100%;
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background-color: transparent;
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background-image: -webkit-linear-gradient( to right, rgba( 255, 255, 255, 0 ), rgba( 255, 255, 255, 1 ) 20px );
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background-image: linear-gradient( to right, rgba( 255, 255, 255, 0 ), rgba( 255, 255, 255, 1 ) 20px );
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}
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2021-08-30 22:44:00 +00:00
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}
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2021-09-09 21:40:06 +00:00
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.vector-search-box {
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// Hide the search box until the user toggles it.
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display: none;
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}
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&.vector-header-search-toggled {
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.vector-sticky-header-search-toggle,
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.vector-sticky-header-context-bar {
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display: none;
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}
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.vector-search-box {
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display: block;
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flex-basis: unit( 500px / @font-size-browser / @font-size-base, em );
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}
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// Increase the start margin of the search box to account for the input
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// expanding on focus.
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.vector-search-box-show-thumbnail {
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margin-left: @size-search-expand;
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}
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}
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2021-08-30 22:44:00 +00:00
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}
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2021-09-03 15:55:50 +00:00
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.client-nojs .vector-sticky-header {
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display: none;
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}
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2021-09-28 22:43:15 +00:00
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@media ( min-width: @width-breakpoint-tablet ) {
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.client-js.vector-sticky-header-enabled {
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2021-09-20 23:37:54 +00:00
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// T290518: When the sticky header is enabled (feature flag is on, js is
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// enabled, and viewport is at higher resolutions), add scroll padding to the
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// root element. This is needed so that the sticky header does not overlap the
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// top of an element when the URI has a hash fragment (e.g. when the user clicks
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// a jump link) and when the user tabs through elements in reverse order.
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//
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// Please note that this class must be independent of the
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// .vector-sticky-header-visible class to correctly handle situations where the
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// sticky header isn't visible yet but we still need scroll padding applied
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// (e.g. when the user navigates to a page with a hash fragment in the URI).
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2021-09-28 22:43:15 +00:00
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scroll-padding-top: @height-sticky-header;
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2021-09-20 23:37:54 +00:00
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// T289817 Override other sticky element offsets to ensure that other
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// sticky elements (i.e. table headers) appear below the sticky header.
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2021-09-24 21:00:32 +00:00
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.mw-sticky-header-element,
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.charts-stickyhead th {
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2021-09-20 23:37:54 +00:00
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/* stylelint-disable-next-line declaration-no-important */
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top: @height-sticky-header !important;
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}
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2021-09-28 22:43:15 +00:00
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}
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}
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