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_mixins.scss 27KB

    // // Mixins // -------------------------------------------------- // Utilities // ------------------------- // Clearfix // Source: http://nicolasgallagher.com/micro-clearfix-hack/ // // For modern browsers // 1. The space content is one way to avoid an Opera bug when the // contenteditable attribute is included anywhere else in the document. // Otherwise it causes space to appear at the top and bottom of elements // that are clearfixed. // 2. The use of `table` rather than `block` is only necessary if using // `:before` to contain the top-margins of child elements. @mixin clearfix() { &:before, &:after { content: " "; // 1 display: table; // 2 } &:after { clear: both; } } // WebKit-style focus @mixin tab-focus() { // Default outline: thin dotted; // WebKit outline: 5px auto -webkit-focus-ring-color; outline-offset: -2px; } // Center-align a block level element @mixin center-block() { display: block; margin-left: auto; margin-right: auto; } // Sizing shortcuts @mixin size($width, $height) { width: $width; height: $height; } @mixin square($size) { @include size($size, $size); } // Placeholder text @mixin placeholder($color: $input-color-placeholder) { &::-moz-placeholder { color: $color; // Firefox opacity: 1; } // See https://github.com/twbs/bootstrap/pull/11526 &:-ms-input-placeholder { color: $color; } // Internet Explorer 10+ &::-webkit-input-placeholder { color: $color; } // Safari and Chrome } // Text overflow // Requires inline-block or block for proper styling @mixin text-overflow() { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; } // CSS image replacement // // Heads up! v3 launched with with only `.hide-text()`, but per our pattern for // mixins being reused as classes with the same name, this doesn't hold up. As // of v3.0.1 we have added `.text-hide()` and deprecated `.hide-text()`. Note // that we cannot chain the mixins together in Less, so they are repeated. // // Source: https://github.com/h5bp/html5-boilerplate/commit/aa0396eae757 // Deprecated as of v3.0.1 (will be removed in v4) @mixin hide-text() { font: #{0/0} a; color: transparent; text-shadow: none; background-color: transparent; border: 0; } // New mixin to use as of v3.0.1 @mixin text-hide() { @include hide-text(); } // CSS3 PROPERTIES // -------------------------------------------------- // Single side border-radius @mixin border-top-radius($radius) { border-top-right-radius: $radius; border-top-left-radius: $radius; } @mixin border-right-radius($radius) { border-bottom-right-radius: $radius; border-top-right-radius: $radius; } @mixin border-bottom-radius($radius) { border-bottom-right-radius: $radius; border-bottom-left-radius: $radius; } @mixin border-left-radius($radius) { border-bottom-left-radius: $radius; border-top-left-radius: $radius; } // Drop shadows // // Note: Deprecated `.box-shadow()` as of v3.1.0 since all of Bootstrap's // supported browsers that have box shadow capabilities now support the // standard `box-shadow` property. @mixin box-shadow($shadow...) { -webkit-box-shadow: $shadow; // iOS <4.3 & Android <4.1 box-shadow: $shadow; } // Transitions @mixin transition($transition...) { -webkit-transition: $transition; transition: $transition; } @mixin transition-property($transition-property...) { -webkit-transition-property: $transition-property; transition-property: $transition-property; } @mixin transition-delay($transition-delay) { -webkit-transition-delay: $transition-delay; transition-delay: $transition-delay; } @mixin transition-duration($transition-duration...) { -webkit-transition-duration: $transition-duration; transition-duration: $transition-duration; } @mixin transition-transform($transition...) { -webkit-transition: -webkit-transform $transition; -moz-transition: -moz-transform $transition; -o-transition: -o-transform $transition; transition: transform $transition; } // Transformations @mixin rotate($degrees) { -webkit-transform: rotate($degrees); -ms-transform: rotate($degrees); // IE9 only transform: rotate($degrees); } @mixin scale($scale-args...) { -webkit-transform: scale($scale-args); -ms-transform: scale($scale-args); // IE9 only transform: scale($scale-args); } @mixin translate($x, $y) { -webkit-transform: translate($x, $y); -ms-transform: translate($x, $y); // IE9 only transform: translate($x, $y); } @mixin skew($x, $y) { -webkit-transform: skew($x, $y); -ms-transform: skewX($x) skewY($y); // See https://github.com/twbs/bootstrap/issues/4885; IE9+ transform: skew($x, $y); } @mixin translate3d($x, $y, $z) { -webkit-transform: translate3d($x, $y, $z); transform: translate3d($x, $y, $z); } @mixin rotateX($degrees) { -webkit-transform: rotateX($degrees); -ms-transform: rotateX($degrees); // IE9 only transform: rotateX($degrees); } @mixin rotateY($degrees) { -webkit-transform: rotateY($degrees); -ms-transform: rotateY($degrees); // IE9 only transform: rotateY($degrees); } @mixin perspective($perspective) { -webkit-perspective: $perspective; -moz-perspective: $perspective; perspective: $perspective; } @mixin perspective-origin($perspective) { -webkit-perspective-origin: $perspective; -moz-perspective-origin: $perspective; perspective-origin: $perspective; } @mixin transform-origin($origin) { -webkit-transform-origin: $origin; -moz-transform-origin: $origin; -ms-transform-origin: $origin; // IE9 only transform-origin: $origin; } // Animations @mixin animation($animation) { -webkit-animation: $animation; animation: $animation; } @mixin animation-name($name) { -webkit-animation-name: $name; animation-name: $name; } @mixin animation-duration($duration) { -webkit-animation-duration: $duration; animation-duration: $duration; } @mixin animation-timing-function($timing-function) { -webkit-animation-timing-function: $timing-function; animation-timing-function: $timing-function; } @mixin animation-delay($delay) { -webkit-animation-delay: $delay; animation-delay: $delay; } @mixin animation-iteration-count($iteration-count) { -webkit-animation-iteration-count: $iteration-count; animation-iteration-count: $iteration-count; } @mixin animation-direction($direction) { -webkit-animation-direction: $direction; animation-direction: $direction; } // Backface visibility // Prevent browsers from flickering when using CSS 3D transforms. // Default value is `visible`, but can be changed to `hidden` @mixin backface-visibility($visibility){ -webkit-backface-visibility: $visibility; -moz-backface-visibility: $visibility; backface-visibility: $visibility; } // Box sizing @mixin box-sizing($boxmodel) { -webkit-box-sizing: $boxmodel; -moz-box-sizing: $boxmodel; box-sizing: $boxmodel; } // User select // For selecting text on the page @mixin user-select($select) { -webkit-user-select: $select; -moz-user-select: $select; -ms-user-select: $select; // IE10+ user-select: $select; } // Resize anything @mixin resizable($direction) { resize: $direction; // Options: horizontal, vertical, both overflow: auto; // Safari fix } // CSS3 Content Columns @mixin content-columns($column-count, $column-gap: $grid-gutter-width) { -webkit-column-count: $column-count; -moz-column-count: $column-count; column-count: $column-count; -webkit-column-gap: $column-gap; -moz-column-gap: $column-gap; column-gap: $column-gap; } // Optional hyphenation @mixin hyphens($mode: auto) { word-wrap: break-word; -webkit-hyphens: $mode; -moz-hyphens: $mode; -ms-hyphens: $mode; // IE10+ -o-hyphens: $mode; hyphens: $mode; } // Opacity @mixin opacity($opacity) { opacity: $opacity; // IE8 filter $opacity-ie: ($opacity * 100); filter: #{alpha(opacity=$opacity-ie)}; } // GRADIENTS // -------------------------------------------------- // Horizontal gradient, from left to right // // Creates two color stops, start and end, by specifying a color and position for each color stop. // Color stops are not available in IE9 and below. @mixin gradient-horizontal($start-color: #555, $end-color: #333, $start-percent: 0%, $end-percent: 100%) { background-image: -webkit-linear-gradient(left, color-stop($start-color $start-percent), color-stop($end-color $end-percent)); // Safari 5.1-6, Chrome 10+ background-image: linear-gradient(to right, $start-color $start-percent, $end-color $end-percent); // Standard, IE10, Firefox 16+, Opera 12.10+, Safari 7+, Chrome 26+ background-repeat: repeat-x; filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#{ie-hex-str($start-color)}', endColorstr='#{ie-hex-str($end-color)}', GradientType=1); // IE9 and down } // Vertical gradient, from top to bottom // // Creates two color stops, start and end, by specifying a color and position for each color stop. // Color stops are not available in IE9 and below. @mixin gradient-vertical($start-color: #555, $end-color: #333, $start-percent: 0%, $end-percent: 100%) { background-image: -webkit-linear-gradient(top, $start-color $start-percent, $end-color $end-percent); // Safari 5.1-6, Chrome 10+ background-image: linear-gradient(to bottom, $start-color $start-percent, $end-color $end-percent); // Standard, IE10, Firefox 16+, Opera 12.10+, Safari 7+, Chrome 26+ background-repeat: repeat-x; filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#{ie-hex-str($start-color)}', endColorstr='#{ie-hex-str($end-color)}', GradientType=0); // IE9 and down } @mixin gradient-directional($start-color: #555, $end-color: #333, $deg: 45deg) { background-repeat: repeat-x; background-image: -webkit-linear-gradient($deg, $start-color, $end-color); // Safari 5.1-6, Chrome 10+ background-image: linear-gradient($deg, $start-color, $end-color); // Standard, IE10, Firefox 16+, Opera 12.10+, Safari 7+, Chrome 26+ } @mixin gradient-horizontal-three-colors($start-color: #00b3ee, $mid-color: #7a43b6, $color-stop: 50%, $end-color: #c3325f) { background-image: -webkit-linear-gradient(left, $start-color, $mid-color $color-stop, $end-color); background-image: linear-gradient(to right, $start-color, $mid-color $color-stop, $end-color); background-repeat: no-repeat; filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#{ie-hex-str($start-color)}', endColorstr='#{ie-hex-str($end-color)}', GradientType=1); // IE9 and down, gets no color-stop at all for proper fallback } @mixin gradient-vertical-three-colors($start-color: #00b3ee, $mid-color: #7a43b6, $color-stop: 50%, $end-color: #c3325f) { background-image: -webkit-linear-gradient($start-color, $mid-color $color-stop, $end-color); background-image: linear-gradient($start-color, $mid-color $color-stop, $end-color); background-repeat: no-repeat; filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#{ie-hex-str($start-color)}', endColorstr='#{ie-hex-str($end-color)}', GradientType=0); // IE9 and down, gets no color-stop at all for proper fallback } @mixin gradient-radial($inner-color: #555, $outer-color: #333) { background-image: -webkit-radial-gradient(circle, $inner-color, $outer-color); background-image: radial-gradient(circle, $inner-color, $outer-color); background-repeat: no-repeat; } @mixin gradient-striped($color: rgba(255,255,255,.15), $angle: 45deg) { background-image: -webkit-linear-gradient($angle, $color 25%, transparent 25%, transparent 50%, $color 50%, $color 75%, transparent 75%, transparent); background-image: linear-gradient($angle, $color 25%, transparent 25%, transparent 50%, $color 50%, $color 75%, transparent 75%, transparent); } // Reset filters for IE // // When you need to remove a gradient background, do not forget to use this to reset // the IE filter for IE9 and below. @mixin reset-filter() { filter: progid:DXImageTransform.Microsoft.gradient(enabled = false); } // Retina images // // Short retina mixin for setting background-image and -size @mixin img-retina($file-1x, $file-2x, $width-1x, $height-1x) { background-image: url(if($bootstrap-sass-asset-helper, twbs-image-path("#{$file-1x}"), "#{$file-1x}")); @media only screen and (-webkit-min-device-pixel-ratio: 2), only screen and ( min--moz-device-pixel-ratio: 2), only screen and ( -o-min-device-pixel-ratio: 2/1), only screen and ( min-device-pixel-ratio: 2), only screen and ( min-resolution: 192dpi), only screen and ( min-resolution: 2dppx) { background-image: url(if($bootstrap-sass-asset-helper, twbs-image-path("#{$file-2x}"), "#{$file-2x}")); background-size: $width-1x $height-1x; } } // Responsive image // // Keep images from scaling beyond the width of their parents. @mixin img-responsive($display: block) { display: $display; max-width: 100%; // Part 1: Set a maximum relative to the parent height: auto; // Part 2: Scale the height according to the width, otherwise you get stretching } // COMPONENT MIXINS // -------------------------------------------------- // Horizontal dividers // ------------------------- // Dividers (basically an hr) within dropdowns and nav lists @mixin nav-divider($color: #e5e5e5) { height: 1px; margin: (($line-height-computed / 2) - 1) 0; overflow: hidden; background-color: $color; } // Panels // ------------------------- @mixin panel-variant($border, $heading-text-color, $heading-bg-color, $heading-border) { border-color: $border; & > .panel-heading { color: $heading-text-color; background-color: $heading-bg-color; border-color: $heading-border; + .panel-collapse .panel-body { border-top-color: $border; } } & > .panel-footer { + .panel-collapse .panel-body { border-bottom-color: $border; } } } // Alerts // ------------------------- @mixin alert-variant($background, $border, $text-color) { background-color: $background; border-color: $border; color: $text-color; hr { border-top-color: darken($border, 5%); } .alert-link { color: darken($text-color, 10%); } } // Tables // ------------------------- @mixin table-row-variant($state, $background) { // Exact selectors below required to override `.table-striped` and prevent // inheritance to nested tables. .table > thead > tr, .table > tbody > tr, .table > tfoot > tr { > td.#{$state}, > th.#{$state}, &.#{$state} > td, &.#{$state} > th { background-color: $background; } } // Hover states for `.table-hover` // Note: this is not available for cells or rows within `thead` or `tfoot`. .table-hover > tbody > tr { > td.#{$state}:hover, > th.#{$state}:hover, &.#{$state}:hover > td, &.#{$state}:hover > th { background-color: darken($background, 5%); } } } // List Groups // ------------------------- @mixin list-group-item-variant($state, $background, $color) { .list-group-item-#{$state} { color: $color; background-color: $background; // [converter] extracted a& to a.list-group-item-#{$state} } a.list-group-item-#{$state} { color: $color; .list-group-item-heading { color: inherit; } &:hover, &:focus { color: $color; background-color: darken($background, 5%); } &.active, &.active:hover, &.active:focus { color: #fff; background-color: $color; border-color: $color; } } } // Button variants // ------------------------- // Easily pump out default styles, as well as :hover, :focus, :active, // and disabled options for all buttons @mixin button-variant($color, $background, $border) { color: $color; background-color: $background; border-color: $border; &:hover, &:focus, &:active, &.active { color: $color; background-color: darken($background, 8%); border-color: darken($border, 12%); } .open & { &.dropdown-toggle { color: $color; background-color: darken($background, 8%); border-color: darken($border, 12%); } } &:active, &.active { background-image: none; } .open & { &.dropdown-toggle { background-image: none; } } &.disabled, &[disabled], fieldset[disabled] & { &, &:hover, &:focus, &:active, &.active { background-color: $background; border-color: $border; } } .badge { color: $background; background-color: $color; } } // Button sizes // ------------------------- @mixin button-size($padding-vertical, $padding-horizontal, $font-size, $line-height, $border-radius) { padding: $padding-vertical $padding-horizontal; font-size: $font-size; line-height: $line-height; border-radius: $border-radius; } // Pagination // ------------------------- @mixin pagination-size($padding-vertical, $padding-horizontal, $font-size, $border-radius) { > li { > a, > span { padding: $padding-vertical $padding-horizontal; font-size: $font-size; } &:first-child { > a, > span { @include border-left-radius($border-radius); } } &:last-child { > a, > span { @include border-right-radius($border-radius); } } } } // Labels // ------------------------- @mixin label-variant($color) { background-color: $color; &[href] { &:hover, &:focus { background-color: darken($color, 10%); } } } // Contextual backgrounds // ------------------------- // [converter] $parent hack @mixin bg-variant($parent, $color) { #{$parent} { background-color: $color; } a#{$parent}:hover { background-color: darken($color, 10%); } } // Typography // ------------------------- // [converter] $parent hack @mixin text-emphasis-variant($parent, $color) { #{$parent} { color: $color; } a#{$parent}:hover { color: darken($color, 10%); } } // Navbar vertical align // ------------------------- // Vertically center elements in the navbar. // Example: an element has a height of 30px, so write out `.navbar-vertical-align(30px);` to calculate the appropriate top margin. @mixin navbar-vertical-align($element-height) { margin-top: (($navbar-height - $element-height) / 2); margin-bottom: (($navbar-height - $element-height) / 2); } // Progress bars // ------------------------- @mixin progress-bar-variant($color) { background-color: $color; .progress-striped & { @include gradient-striped(); } } // Responsive utilities // ------------------------- // More easily include all the states for responsive-utilities.less. // [converter] $parent hack @mixin responsive-visibility($parent) { #{$parent} { display: block !important; } table#{$parent} { display: table; } tr#{$parent} { display: table-row !important; } th#{$parent}, td#{$parent} { display: table-cell !important; } } // [converter] $parent hack @mixin responsive-invisibility($parent) { #{$parent} { display: none !important; } } // Grid System // ----------- // Centered container element @mixin container-fixed() { margin-right: auto; margin-left: auto; padding-left: ($grid-gutter-width / 2); padding-right: ($grid-gutter-width / 2); @include clearfix(); } // Creates a wrapper for a series of columns @mixin make-row($gutter: $grid-gutter-width) { margin-left: ($gutter / -2); margin-right: ($gutter / -2); @include clearfix(); } // Generate the extra small columns @mixin make-xs-column($columns, $gutter: $grid-gutter-width) { position: relative; float: left; width: percentage(($columns / $grid-columns)); min-height: 1px; padding-left: ($gutter / 2); padding-right: ($gutter / 2); } @mixin make-xs-column-offset($columns) { @media (min-width: $screen-xs-min) { margin-left: percentage(($columns / $grid-columns)); } } @mixin make-xs-column-push($columns) { @media (min-width: $screen-xs-min) { left: percentage(($columns / $grid-columns)); } } @mixin make-xs-column-pull($columns) { @media (min-width: $screen-xs-min) { right: percentage(($columns / $grid-columns)); } } // Generate the small columns @mixin make-sm-column($columns, $gutter: $grid-gutter-width) { position: relative; min-height: 1px; padding-left: ($gutter / 2); padding-right: ($gutter / 2); @media (min-width: $screen-sm-min) { float: left; width: percentage(($columns / $grid-columns)); } } @mixin make-sm-column-offset($columns) { @media (min-width: $screen-sm-min) { margin-left: percentage(($columns / $grid-columns)); } } @mixin make-sm-column-push($columns) { @media (min-width: $screen-sm-min) { left: percentage(($columns / $grid-columns)); } } @mixin make-sm-column-pull($columns) { @media (min-width: $screen-sm-min) { right: percentage(($columns / $grid-columns)); } } // Generate the medium columns @mixin make-md-column($columns, $gutter: $grid-gutter-width) { position: relative; min-height: 1px; padding-left: ($gutter / 2); padding-right: ($gutter / 2); @media (min-width: $screen-md-min) { float: left; width: percentage(($columns / $grid-columns)); } } @mixin make-md-column-offset($columns) { @media (min-width: $screen-md-min) { margin-left: percentage(($columns / $grid-columns)); } } @mixin make-md-column-push($columns) { @media (min-width: $screen-md-min) { left: percentage(($columns / $grid-columns)); } } @mixin make-md-column-pull($columns) { @media (min-width: $screen-md-min) { right: percentage(($columns / $grid-columns)); } } // Generate the large columns @mixin make-lg-column($columns, $gutter: $grid-gutter-width) { position: relative; min-height: 1px; padding-left: ($gutter / 2); padding-right: ($gutter / 2); @media (min-width: $screen-lg-min) { float: left; width: percentage(($columns / $grid-columns)); } } @mixin make-lg-column-offset($columns) { @media (min-width: $screen-lg-min) { margin-left: percentage(($columns / $grid-columns)); } } @mixin make-lg-column-push($columns) { @media (min-width: $screen-lg-min) { left: percentage(($columns / $grid-columns)); } } @mixin make-lg-column-pull($columns) { @media (min-width: $screen-lg-min) { right: percentage(($columns / $grid-columns)); } } // Framework grid generation // // Used only by Bootstrap to generate the correct number of grid classes given // any value of `$grid-columns`. // [converter] This is defined recursively in LESS, but Sass supports real loops @mixin make-grid-columns() { $list: ''; $i: 1; $list: ".col-xs-#{$i}, .col-sm-#{$i}, .col-md-#{$i}, .col-lg-#{$i}"; @for $i from (1 + 1) through $grid-columns { $list: "#{$list}, .col-xs-#{$i}, .col-sm-#{$i}, .col-md-#{$i}, .col-lg-#{$i}"; } #{$list} { position: relative; // Prevent columns from collapsing when empty min-height: 1px; // Inner gutter via padding padding-left: ($grid-gutter-width / 2); padding-right: ($grid-gutter-width / 2); } } // [converter] This is defined recursively in LESS, but Sass supports real loops @mixin float-grid-columns($class) { $list: ''; $i: 1; $list: ".col-#{$class}-#{$i}"; @for $i from (1 + 1) through $grid-columns { $list: "#{$list}, .col-#{$class}-#{$i}"; } #{$list} { float: left; } } @mixin calc-grid-column($index, $class, $type) { @if ($type == width) and ($index > 0) { .col-#{$class}-#{$index} { width: percentage(($index / $grid-columns)); } } @if ($type == push) { .col-#{$class}-push-#{$index} { left: percentage(($index / $grid-columns)); } } @if ($type == pull) { .col-#{$class}-pull-#{$index} { right: percentage(($index / $grid-columns)); } } @if ($type == offset) { .col-#{$class}-offset-#{$index} { margin-left: percentage(($index / $grid-columns)); } } } // [converter] This is defined recursively in LESS, but Sass supports real loops @mixin loop-grid-columns($columns, $class, $type) { @for $i from 0 through $columns { @include calc-grid-column($i, $class, $type); } } // Create grid for specific class @mixin make-grid($class) { @include float-grid-columns($class); @include loop-grid-columns($grid-columns, $class, width); @include loop-grid-columns($grid-columns, $class, pull); @include loop-grid-columns($grid-columns, $class, push); @include loop-grid-columns($grid-columns, $class, offset); } // Form validation states // // Used in forms.less to generate the form validation CSS for warnings, errors, // and successes. @mixin form-control-validation($text-color: #555, $border-color: #ccc, $background-color: #f5f5f5) { // Color the label and help text .help-block, .control-label, .radio, .checkbox, .radio-inline, .checkbox-inline { color: $text-color; } // Set the border and box shadow on specific inputs to match .form-control { 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; } // Optional feedback icon .form-control-feedback { color: $text-color; } } // Form control focus state // // Generate a customized focus state and for any input with the specified color, // which defaults to the `$input-focus-border` variable. // // We highly encourage you to not customize the default value, but instead use // this to tweak colors on an as-needed basis. This aesthetic change is based on // WebKit's default styles, but applicable to a wider range of browsers. Its // usability and accessibility should be taken into account with any change. // // Example usage: change the default blue border and shadow to white for better // contrast against a dark gray background. @mixin form-control-focus($color: $input-border-focus) { $color-rgba: rgba(red($color), green($color), blue($color), .6); &:focus { border-color: $color; outline: 0; @include box-shadow(inset 0 1px 1px rgba(0,0,0,.075), 0 0 8px $color-rgba); } } // Form control sizing // // Relative text size, padding, and border-radii changes for form controls. For // horizontal sizing, wrap controls in the predefined grid classes. `<select>` // element gets special love because it's special, and that's a fact! // [converter] $parent hack @mixin input-size($parent, $input-height, $padding-vertical, $padding-horizontal, $font-size, $line-height, $border-radius) { #{$parent} { height: $input-height; padding: $padding-vertical $padding-horizontal; font-size: $font-size; line-height: $line-height; border-radius: $border-radius; } select#{$parent} { height: $input-height; line-height: $input-height; } textarea#{$parent}, select[multiple]#{$parent} { height: auto; } }