1 // Common Less mixin library for MediaWiki
3 // By default the folder containing this file is included in $wgResourceLoaderLESSImportPaths,
4 // which makes this file importable by all less files via '@import "mediawiki.mixins";'.
6 // The mixins included below are considered a public interface for MediaWiki extensions.
7 // The signatures of parametrized mixins should be kept as stable as possible.
9 // See <http://lesscss.org/#-mixins> for more information about how to write mixins.
11 .background-image( @url ) {
12 background-image: e( '/* @embed */' ) url( @url );
15 // Deprecated in MW 1.27
16 .background-size( @width, @height ) {
17 // Vendor prefix is added to support Android 2
18 -webkit-background-size: @width @height;
19 background-size: @width @height;
22 .vertical-gradient( @startColor: gray, @endColor: white, @startPos: 0, @endPos: 100% ) {
23 background-color: @endColor;
24 background-image: -webkit-gradient( linear, left top, left bottom, color-stop( @startPos, @startColor ), color-stop( @endPos, @endColor ) ); // Safari 4+, Chrome 2+
25 background-image: -webkit-linear-gradient( top, @startColor @startPos, @endColor @endPos ); // Safari 5.1+, Chrome 10+
26 background-image: -moz-linear-gradient( top, @startColor @startPos, @endColor @endPos ); // Firefox 3.6+
27 background-image: linear-gradient( @startColor @startPos, @endColor @endPos ); // Standard
30 // SVG support using a transparent gradient to guarantee cross-browser
31 // compatibility (browsers able to understand gradient syntax support also SVG).
32 // http://pauginer.tumblr.com/post/36614680636/invisible-gradient-technique
34 // We use gzip compression, which means that it is okay to embed twice.
36 // We do not embed the fallback image on the assumption that the gain for old browsers
37 // is not worth the harm done to modern ones.
38 .background-image-svg( @svg, @fallback ) {
39 background-image: url( @fallback );
40 background-image: linear-gradient( transparent, transparent ), e( '/* @embed */' ) url( @svg );
41 // Do not serve SVG to Opera 12, bad rendering with border-radius or background-size (T87504)
42 background-image: -o-linear-gradient( transparent, transparent ), url( @fallback );
45 .list-style-image( @url ) {
46 list-style-image: e( '/* @embed */' ) url( @url );
49 .list-style-image-svg( @svg, @fallback ) {
50 list-style-image: e( '/* @embed */' ) url( @svg );
51 /* Fallback to PNG bullet for IE 8 and below using CSS hack */
52 list-style-image: e( '/* @embed */' ) url( @fallback ) e( '\9' );
55 .transition( @value ) {
56 -webkit-transition: @value; // Safari 3.1-6.0, iOS 3.2-6.1, Android 2.1-4.3
57 -moz-transition: @value; // Firefox 4-15
58 transition: @value; // Chrome 26+, Firefox 16+, IE 10+, Safari 6.1+, Opera 12.1+, iOS 7+, Android 4.4+
61 .box-sizing( @value ) {
62 -webkit-box-sizing: @value; // Safari 3.1-5.0, iOS 3.2-4.3, Android 2.1-3.0
63 -moz-box-sizing: @value; // Firefox 4-28,
64 box-sizing: @value; // Chrome 10+, Firefox 29+, IE 8+, Safari 5.1+, Opera 10+, iOS 5+, Android 4+
67 .box-shadow( @value ) {
68 -webkit-box-shadow: @value; // Safari 3.1-5.0, iOS 3.2-4.3, Android 2.1-3.0
69 box-shadow: @value; // Chrome 10+, Firefox 4+, IE 9+, Safari 5.1+, Opera 11+, iOS 5+, Android 4+
72 .column-count( @value ) {
73 -webkit-column-count: @value;
74 -moz-column-count: @value;
78 .column-width( @value ) {
79 -webkit-column-width: @value; // Chrome Any, Safari 3+, Opera 15+
80 -moz-column-width: @value; // Firefox 1.5+
81 column-width: @value; // IE 10+, Opera 11.1-12.1
84 .column-break-inside-avoid() {
85 -webkit-column-break-inside: avoid; // Chrome Any, Safari 3+, Opera 15+
86 page-break-inside: avoid; // Firefox 1.5+
87 break-inside: avoid-column; // IE 10+, Opera 11.1-12.1
90 .flex-display( @display: flex ) {
91 display: ~"-webkit-@{display}"; // iOS 6-, Safari 3.1-6
92 display: ~"-moz-@{display}"; // Firefox 21-
93 display: ~"-ms-@{display}box"; // IE 10
97 .flex( @grow: 1, @shrink: 1, @width: auto, @order: 1 ) {
98 // For 2009/2012 spec alignment consistency with current default
99 -webkit-box-pack: justify; // iOS 6-, Safari 3.1-6
100 -moz-box-pack: justify; // Firefox 21-
101 -ms-flex-pack: justify; // IE 10 (2012 spec)
102 justify-content: space-between; // Current default
104 // 2009 spec only supports 'flexible' as opposed to grow (flexPositive)
105 // and shrink (flexNegative); default to grow value
106 -webkit-box-flex: @grow; // iOS 6-, Safari 3.1-6
107 -moz-box-flex: @grow; // Firefox 21-
108 width: @width; // Fallback for flex-basis
110 -ms-flex: @grow @shrink @width; // IE 10
111 flex: @grow @shrink @width;
113 -webkit-box-ordinal-group: @order; // iOS 6-, Safari 3.1-6
114 -moz-box-ordinal-group: @order; // Firefox 21-
115 -ms-flex-order: @order; // IE 10
120 // Screen Reader Helper Mixin
121 .mixin-screen-reader-text() {
123 position: absolute !important;
124 clip: rect( 1px, 1px, 1px, 1px );