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//
// Mixins
// --------------------------------------------------
// UTILITY MIXINS
// --------------------------------------------------
// Clearfix
// --------
// For clearing floats like a boss h5bp.com/q
@mixin clearfix {
*zoom: 1;
&:before,
&:after {
display: table;
content: "";
// Fixes Opera/contenteditable bug:
// http://nicolasgallagher.com/micro-clearfix-hack/#comment-36952
line-height: 0;
}
&:after {
clear: both;
}
}
// Webkit-style focus
// ------------------
@mixin tab-focus() {
// Default
outline: thin dotted #333;
// 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;
}
// IE7 inline-block
// ----------------
@mixin ie7-inline-block() {
*display: inline; /* IE7 inline-block hack */
*zoom: 1;
}
// IE7 likes to collapse whitespace on either side of the inline-block elements.
// Ems because we're attempting to match the width of a space character. Left
// version is for form buttons, which typically come after other elements, and
// right version is for icons, which come before. Applying both is ok, but it will
// mean that space between those elements will be .6em (~2 space characters) in IE7,
// instead of the 1 space in other browsers.
@mixin ie7-restore-left-whitespace() {
*margin-left: .3em;
&:first-child {
*margin-left: 0;
}
}
@mixin ie7-restore-right-whitespace() {
*margin-right: .3em;
}
// Sizing shortcuts
// -------------------------
@mixin size($height, $width) {
width: $width;
height: $height;
}
@mixin square($size) {
@include size($size, $size);
}
// Placeholder text
// -------------------------
@mixin placeholder($color: $placeholderText) {
&:-moz-placeholder {
color: $color;
}
&:-ms-input-placeholder {
color: $color;
}
&::-webkit-input-placeholder {
color: $color;
}
}
// Text overflow
// -------------------------
// Requires inline-block or block for proper styling
@mixin text-overflow() {
overflow: hidden;
text-overflow: ellipsis;
white-space: nowrap;
}
// CSS image replacement
// -------------------------
// Source: https://github.com/h5bp/html5-boilerplate/commit/aa0396eae757
@mixin hide-text {
font: 0/0 a;
color: transparent;
text-shadow: none;
background-color: transparent;
border: 0;
}
// FONTS
// --------------------------------------------------
@mixin font-family-serif() {
font-family: $serifFontFamily;
}
@mixin font-family-sans-serif() {
font-family: $sansFontFamily;
}
@mixin font-family-monospace() {
font-family: $monoFontFamily;
}
@mixin font-shorthand($size: $baseFontSize, $weight: normal, $lineHeight: $baseLineHeight) {
font-size: $size;
font-weight: $weight;
line-height: $lineHeight;
}
@mixin font-serif($size: $baseFontSize, $weight: normal, $lineHeight: $baseLineHeight) {
@include font-family-serif();
@include font-shorthand($size, $weight, $lineHeight);
}
@mixin font-sans-serif($size: $baseFontSize, $weight: normal, $lineHeight: $baseLineHeight) {
@include font-family-sans-serif();
@include font-shorthand($size, $weight, $lineHeight);
}
@mixin font-monospace($size: $baseFontSize, $weight: normal, $lineHeight: $baseLineHeight) {
@include font-family-monospace();
@include font-shorthand($size, $weight, $lineHeight);
}
// FORMS
// --------------------------------------------------
// Block level inputs
@mixin input-block-level {
display: block;
width: 100%;
min-height: $inputHeight; // Make inputs at least the height of their button counterpart (base line-height + padding + border)
@include box-sizing(border-box); // Makes inputs behave like true block-level elements
}
// Mixin for form field states
@mixin formFieldState($textColor: #555, $borderColor: #ccc, $backgroundColor: #f5f5f5) {
// Set the text color
.control-label,
.help-block,
.help-inline {
color: $textColor;
}
// Style inputs accordingly
.checkbox,
.radio,
input,
select,
textarea {
color: $textColor;
}
input,
select,
textarea {
border-color: $borderColor;
box-shadow: inset 0 1px 1px rgba(0,0,0,.075); // Redeclare so transitions work
&:focus {
border-color: darken($borderColor, 10%);
box-shadow: inset 0 1px 1px rgba(0,0,0,.075), 0 0 6px lighten($borderColor, 20%);
}
}
// Give a small background color for input-prepend/-append
.input-prepend .add-on,
.input-append .add-on {
color: $textColor;
background-color: $backgroundColor;
border-color: $textColor;
}
}
// BACKGROUNDS
// --------------------------------------------------
// Add an alphatransparency value to any background or border color (via Elyse Holladay)
@mixin translucent-background($color: $white, $alpha: 1) {
background-color: hsla(hue($color), saturation($color), lightness($color), $alpha);
}
@mixin translucent-border($color: $white, $alpha: 1) {
border-color: hsla(hue($color), saturation($color), lightness($color), $alpha);
@include background-clip(padding-box);
}
// Gradient Bar Colors for buttons and alerts
@mixin gradientBar($primaryColor, $secondaryColor, $textColor: #fff, $textShadow: 0 -1px 0 rgba(0,0,0,.25)) {
color: $textColor;
text-shadow: $textShadow;
@include gradient-vertical($primaryColor, $secondaryColor);
border-color: $secondaryColor $secondaryColor darken($secondaryColor, 15%);
border-color: rgba(0,0,0,.1) rgba(0,0,0,.1) fade-in(rgba(0,0,0,.1), 0.15);
}
// Gradients
@mixin gradient-horizontal($startColor: #555, $endColor: #333) {
background-color: $endColor;
background-image: -moz-linear-gradient(left, $startColor, $endColor); // FF 3.6+
background-image: -webkit-gradient(linear, 0 0, 100% 0, from($startColor), to($endColor)); // Safari 4+, Chrome 2+
background-image: -webkit-linear-gradient(left, $startColor, $endColor); // Safari 5.1+, Chrome 10+
background-image: -o-linear-gradient(left, $startColor, $endColor); // Opera 11.10
background-image: linear-gradient(to right, $startColor, $endColor); // Standard, IE10
background-repeat: repeat-x;
filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#{ie-hex-str($startColor)}', endColorstr='#{ie-hex-str($endColor)}', GradientType=1); // IE9 and down
}
@mixin gradient-vertical($startColor: #555, $endColor: #333) {
background-color: mix($startColor, $endColor, 60%);
background-image: -moz-linear-gradient(top, $startColor, $endColor); // FF 3.6+
background-image: -webkit-gradient(linear, 0 0, 0 100%, from($startColor), to($endColor)); // Safari 4+, Chrome 2+
background-image: -webkit-linear-gradient(top, $startColor, $endColor); // Safari 5.1+, Chrome 10+
background-image: -o-linear-gradient(top, $startColor, $endColor); // Opera 11.10
background-image: linear-gradient(to bottom, $startColor, $endColor); // Standard, IE10
background-repeat: repeat-x;
filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#{ie-hex-str($startColor)}', endColorstr='#{ie-hex-str($endColor)}', GradientType=0); // IE9 and down
}
@mixin gradient-directional($startColor: #555, $endColor: #333, $deg: 45deg) {
background-color: $endColor;
background-repeat: repeat-x;
background-image: -moz-linear-gradient($deg, $startColor, $endColor); // FF 3.6+
background-image: -webkit-linear-gradient($deg, $startColor, $endColor); // Safari 5.1+, Chrome 10+
background-image: -o-linear-gradient($deg, $startColor, $endColor); // Opera 11.10
background-image: linear-gradient($deg, $startColor, $endColor); // Standard, IE10
}
@mixin gradient-horizontal-three-colors($startColor: #00b3ee, $midColor: #7a43b6, $colorStop: 50%, $endColor: #c3325f) {
background-color: mix($midColor, $endColor, 80%);
background-image: -webkit-gradient(left, linear, 0 0, 0 100%, from($startColor), color-stop($colorStop, $midColor), to($endColor));
background-image: -webkit-linear-gradient(left, $startColor, $midColor $colorStop, $endColor);
background-image: -moz-linear-gradient(left, $startColor, $midColor $colorStop, $endColor);
background-image: -o-linear-gradient(left, $startColor, $midColor $colorStop, $endColor);
background-image: linear-gradient(to right, $startColor, $midColor $colorStop, $endColor);
background-repeat: no-repeat;
filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#{ie-hex-str($startColor)}', endColorstr='#{ie-hex-str($endColor)}', GradientType=0); // IE9 and down, gets no color-stop at all for proper fallback
}
@mixin gradient-vertical-three-colors($startColor: #00b3ee, $midColor: #7a43b6, $colorStop: 50%, $endColor: #c3325f) {
background-color: mix($midColor, $endColor, 80%);
background-image: -webkit-gradient(linear, 0 0, 0 100%, from($startColor), color-stop($colorStop, $midColor), to($endColor));
background-image: -webkit-linear-gradient($startColor, $midColor $colorStop, $endColor);
background-image: -moz-linear-gradient(top, $startColor, $midColor $colorStop, $endColor);
background-image: -o-linear-gradient($startColor, $midColor $colorStop, $endColor);
background-image: linear-gradient($startColor, $midColor $colorStop, $endColor);
background-repeat: no-repeat;
filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#{ie-hex-str($startColor)}', endColorstr='#{ie-hex-str($endColor)}', GradientType=0); // IE9 and down, gets no color-stop at all for proper fallback
}
@mixin gradient-radial($innerColor: #555, $outerColor: #333) {
background-color: $outerColor;
background-image: -webkit-gradient(radial, center center, 0, center center, 460, from($innerColor), to($outerColor));
background-image: -webkit-radial-gradient(circle, $innerColor, $outerColor);
background-image: -moz-radial-gradient(circle, $innerColor, $outerColor);
background-image: -o-radial-gradient(circle, $innerColor, $outerColor);
background-repeat: no-repeat;
}
@mixin gradient-striped($color: #555, $angle: 45deg) {
background-color: $color;
background-image: -webkit-gradient(linear, 0 100%, 100% 0, color-stop(.25, rgba(255,255,255,.15)), color-stop(.25, transparent), color-stop(.5, transparent), color-stop(.5, rgba(255,255,255,.15)), color-stop(.75, rgba(255,255,255,.15)), color-stop(.75, transparent), to(transparent));
background-image: -webkit-linear-gradient($angle, rgba(255,255,255,.15) 25%, transparent 25%, transparent 50%, rgba(255,255,255,.15) 50%, rgba(255,255,255,.15) 75%, transparent 75%, transparent);
background-image: -moz-linear-gradient($angle, rgba(255,255,255,.15) 25%, transparent 25%, transparent 50%, rgba(255,255,255,.15) 50%, rgba(255,255,255,.15) 75%, transparent 75%, transparent);
background-image: -o-linear-gradient($angle, rgba(255,255,255,.15) 25%, transparent 25%, transparent 50%, rgba(255,255,255,.15) 50%, rgba(255,255,255,.15) 75%, transparent 75%, transparent);
background-image: linear-gradient($angle, rgba(255,255,255,.15) 25%, transparent 25%, transparent 50%, rgba(255,255,255,.15) 50%, rgba(255,255,255,.15) 75%, transparent 75%, transparent);
}
// Reset filters for IE
@mixin reset-filter() {
filter: progid:DXImageTransform.Microsoft.gradient(enabled=false);
}
// COMPONENT MIXINS
// --------------------------------------------------
// Horizontal dividers
// -------------------------
// Dividers (basically an hr) within dropdowns and nav lists
@mixin nav-divider($top: #e5e5e5, $bottom: $white) {
// IE7 needs a set width since we gave a height. Restricting just
// to IE7 to keep the 1px left/right space in other browsers.
// It is unclear where IE is getting the extra space that we need
// to negative-margin away, but so it goes.
*width: 100%;
height: 1px;
margin: (($baseLineHeight / 2) - 1) 1px; // 8px 1px
*margin: -5px 0 5px;
overflow: hidden;
background-color: $top;
border-bottom: 1px solid $bottom;
}
// Button backgrounds
// ------------------
@mixin buttonBackground($startColor, $endColor, $textColor: #fff, $textShadow: 0 -1px 0 rgba(0,0,0,.25)) {
// gradientBar will set the background to a pleasing blend of these, to support IE<=9
@include gradientBar($startColor, $endColor, $textColor, $textShadow);
*background-color: $endColor; /* Darken IE7 buttons by default so they stand out more given they won't have borders */
@include reset-filter();
// in these cases the gradient won't cover the background, so we override
&:hover, &:focus, &:active, &.active, &.disabled, &[disabled] {
color: $textColor;
background-color: $endColor;
*background-color: darken($endColor, 5%);
}
// IE 7 + 8 can't handle box-shadow to show active, so we darken a bit ourselves
&:active,
&.active {
background-color: darken($endColor, 10%) \9;
}
}
// Navbar vertical align
// -------------------------
// Vertically center elements in the navbar.
// Example: an element has a height of 30px, so write out `.navbarVerticalAlign(30px);` to calculate the appropriate top margin.
@mixin navbarVerticalAlign($elementHeight) {
margin-top: ($navbarHeight - $elementHeight) / 2;
}
// Grid System
// -----------
// Centered container element
@mixin container-fixed() {
margin-right: auto;
margin-left: auto;
@include clearfix();
}
// Table columns
@mixin tableColumns($columnSpan: 1) {
float: none; // undo default grid column styles
width: (($gridColumnWidth) * $columnSpan) + ($gridGutterWidth * ($columnSpan - 1)) - 16; // 16 is total padding on left and right of table cells
margin-left: 0; // undo default grid column styles
}
// Make a Grid
// Use .makeRow and .makeColumn to assign semantic layouts grid system behavior
@mixin makeRow() {
margin-left: $gridGutterWidth * -1;
@include clearfix();
}
@mixin makeColumn($columns: 1, $offset: 0) {
float: left;
margin-left: ($gridColumnWidth * $offset) + ($gridGutterWidth * ($offset - 1)) + ($gridGutterWidth * 2);
width: ($gridColumnWidth * $columns) + ($gridGutterWidth * ($columns - 1));
}
// The Grid
@mixin grid-core($gridColumnWidth, $gridGutterWidth) {
.row {
margin-left: $gridGutterWidth * -1;
@include clearfix();
}
[class*="span"] {
float: left;
min-height: 1px; // prevent collapsing columns
margin-left: $gridGutterWidth;
}
// Set the container width, and override it for fixed navbars in media queries
.container,
.navbar-static-top .container,
.navbar-fixed-top .container,
.navbar-fixed-bottom .container {
@include grid-core-span($gridColumns, $gridColumnWidth, $gridGutterWidth);
}
// generate .spanX and .offsetX
@include grid-core-span-x($gridColumns, $gridColumnWidth, $gridGutterWidth);
@include grid-core-offset-x($gridColumns, $gridColumnWidth, $gridGutterWidth);
}
@mixin grid-core-span-x($gridColumns, $gridColumnWidth, $gridGutterWidth) {
@for $i from 1 through $gridColumns {
.span#{$i} { @include grid-core-span($i, $gridColumnWidth, $gridGutterWidth); }
}
}
@mixin grid-core-offset-x($gridColumns, $gridColumnWidth, $gridGutterWidth) {
@for $i from 1 through $gridColumns {
.offset#{$i} { @include grid-core-offset($i, $gridColumnWidth, $gridGutterWidth); }
}
}
@mixin grid-core-span($columns, $gridColumnWidth, $gridGutterWidth) {
width: ($gridColumnWidth * $columns) + ($gridGutterWidth * ($columns - 1));
}
@mixin grid-core-offset($columns, $gridColumnWidth, $gridGutterWidth) {
margin-left: ($gridColumnWidth * $columns) + ($gridGutterWidth * ($columns + 1));
}
@mixin grid-fluid($fluidGridColumnWidth, $fluidGridGutterWidth) {
.row-fluid {
width: 100%;
@include clearfix();
[class*="span"] {
@include input-block-level();
float: left;
margin-left: $fluidGridGutterWidth;
*margin-left: $fluidGridGutterWidth - (.5 / $gridRowWidth * 100px * 1%);
}
[class*="span"]:first-child {
margin-left: 0;
}
// Space grid-sized controls properly if multiple per line
.controls-row [class*="span"] + [class*="span"] {
margin-left: $fluidGridGutterWidth;
}
// generate .spanX and .offsetX
@include grid-fluid-span-x($gridColumns, $fluidGridColumnWidth, $fluidGridGutterWidth);
@include grid-fluid-offset-x($gridColumns, $fluidGridColumnWidth, $fluidGridGutterWidth);
}
}
@mixin grid-fluid-span-x($gridColumns, $fluidGridColumnWidth, $fluidGridGutterWidth) {
@for $i from 1 through $gridColumns {
.span#{$i} { @include grid-fluid-span($i, $fluidGridColumnWidth, $fluidGridGutterWidth); }
}
}
@mixin grid-fluid-offset-x($gridColumns, $fluidGridColumnWidth, $fluidGridGutterWidth) {
@for $i from 1 through $gridColumns {
.offset#{$i} { @include grid-fluid-offset($i, $fluidGridColumnWidth, $fluidGridGutterWidth); }
.offset#{$i}:first-child { @include grid-fluid-offset-first-child($i, $fluidGridColumnWidth, $fluidGridGutterWidth); }
}
}
@mixin grid-fluid-span($columns, $fluidGridColumnWidth, $fluidGridGutterWidth) {
width: ($fluidGridColumnWidth * $columns) + ($fluidGridGutterWidth * ($columns - 1));
*width: ($fluidGridColumnWidth * $columns) + ($fluidGridGutterWidth * ($columns - 1)) - (.5 / $gridRowWidth * 100px * 1%);
}
@mixin grid-fluid-offset($columns, $fluidGridColumnWidth, $fluidGridGutterWidth) {
margin-left: ($fluidGridColumnWidth * $columns) + ($fluidGridGutterWidth * ($columns - 1)) + ($fluidGridGutterWidth * 2);
*margin-left: ($fluidGridColumnWidth * $columns) + ($fluidGridGutterWidth * ($columns - 1)) - (.5 / $gridRowWidth * 100px * 1%) + ($fluidGridGutterWidth * 2) - (.5 / $gridRowWidth * 100px * 1%);
}
@mixin grid-fluid-offset-first-child($columns, $fluidGridColumnWidth, $fluidGridGutterWidth) {
margin-left: ($fluidGridColumnWidth * $columns) + ($fluidGridGutterWidth * ($columns - 1)) + ($fluidGridGutterWidth);
*margin-left: ($fluidGridColumnWidth * $columns) + ($fluidGridGutterWidth * ($columns - 1)) - (.5 / $gridRowWidth * 100px * 1%) + $fluidGridGutterWidth - (.5 / $gridRowWidth * 100px * 1%);
}
@mixin grid-input($gridColumnWidth, $gridGutterWidth) {
input,
textarea,
.uneditable-input {
margin-left: 0; // override margin-left from core grid system
}
// Space grid-sized controls properly if multiple per line
.controls-row [class*="span"] + [class*="span"] {
margin-left: $gridGutterWidth;
}
// generate .spanX
@include grid-input-span-x($gridColumns, $gridColumnWidth, $gridGutterWidth);
}
@mixin grid-input-span-x($gridColumns, $gridColumnWidth, $gridGutterWidth) {
@for $i from 1 through $gridColumns {
input.span#{$i},
textarea.span#{$i},
.uneditable-input.span#{$i} {
@include grid-input-span($i, $gridColumnWidth, $gridGutterWidth);
}
}
}
@mixin grid-input-span($columns, $gridColumnWidth, $gridGutterWidth) {
width: (($gridColumnWidth) * $columns) + ($gridGutterWidth * ($columns - 1)) - 14;
}
// github
@mixin github-header {
background-color: #f3f3f3;
background-image: linear-gradient(#f9f9f9, #f3f3f3);
background-repeat: repeat-x;
text-shadow: 0 1px 0 #fff;
border-bottom: 1px solid #e5e5e5;
}
@mixin github-pagehead {
background-color: #fafafa;
border-bottom: 1px solid #eee;
}