3 // --------------------------------------------------
7 // -------------------------
10 // Source: http://nicolasgallagher.com/micro-clearfix-hack/
12 // For modern browsers
13 // 1. The space content is one way to avoid an Opera bug when the
14 // contenteditable attribute is included anywhere else in the document.
15 // Otherwise it causes space to appear at the top and bottom of elements
16 // that are clearfixed.
17 // 2. The use of `table` rather than `block` is only necessary if using
18 // `:before` to contain the top-margins of child elements.
23 display: table; /* 2 */
33 outline: thin dotted #333;
35 outline: 5px auto -webkit-focus-ring-color;
39 // Center-align a block level element
47 .size(@width; @height) {
56 .placeholder(@color: @input-color-placeholder) {
57 &:-moz-placeholder { color: @color; } // Firefox 4-18
58 &::-moz-placeholder { color: @color; } // Firefox 19+
59 &:-ms-input-placeholder { color: @color; } // Internet Explorer 10+
60 &::-webkit-input-placeholder { color: @color; } // Safari and Chrome
64 // Requires inline-block or block for proper styling
67 text-overflow: ellipsis;
71 // CSS image replacement
72 // Source: https://github.com/h5bp/html5-boilerplate/commit/aa0396eae757
77 background-color: transparent;
84 // --------------------------------------------------
86 // Single side border-radius
87 .border-top-radius(@radius) {
88 border-top-right-radius: @radius;
89 border-top-left-radius: @radius;
91 .border-right-radius(@radius) {
92 border-bottom-right-radius: @radius;
93 border-top-right-radius: @radius;
95 .border-bottom-radius(@radius) {
96 border-bottom-right-radius: @radius;
97 border-bottom-left-radius: @radius;
99 .border-left-radius(@radius) {
100 border-bottom-left-radius: @radius;
101 border-top-left-radius: @radius;
105 .box-shadow(@shadow) {
106 -webkit-box-shadow: @shadow; // iOS <4.3 & Android <4.1
111 .transition(@transition) {
112 -webkit-transition: @transition;
113 transition: @transition;
115 .transition-delay(@transition-delay) {
116 -webkit-transition-delay: @transition-delay;
117 transition-delay: @transition-delay;
119 .transition-duration(@transition-duration) {
120 -webkit-transition-duration: @transition-duration;
121 transition-duration: @transition-duration;
123 .transition-transform(@transition) {
124 -webkit-transition: -webkit-transform @transition;
125 -moz-transition: -moz-transform @transition;
126 -o-transition: -o-transform @transition;
127 transition: transform @transition;
132 -webkit-transform: rotate(@degrees);
133 -ms-transform: rotate(@degrees); // IE9+
134 transform: rotate(@degrees);
137 -webkit-transform: scale(@ratio);
138 -ms-transform: scale(@ratio); // IE9+
139 transform: scale(@ratio);
142 -webkit-transform: translate(@x, @y);
143 -ms-transform: translate(@x, @y); // IE9+
144 transform: translate(@x, @y);
147 -webkit-transform: skew(@x, @y);
148 -ms-transform: skewX(@x) skewY(@y); // See https://github.com/twbs/bootstrap/issues/4885; IE9+
149 transform: skew(@x, @y);
151 .translate3d(@x; @y; @z) {
152 -webkit-transform: translate3d(@x, @y, @z);
153 transform: translate3d(@x, @y, @z);
156 // Backface visibility
157 // Prevent browsers from flickering when using CSS 3D transforms.
158 // Default value is `visible`, but can be changed to `hidden`
159 // See git pull https://github.com/dannykeane/bootstrap.git backface-visibility for examples
160 .backface-visibility(@visibility){
161 -webkit-backface-visibility: @visibility;
162 -moz-backface-visibility: @visibility;
163 backface-visibility: @visibility;
167 .box-sizing(@boxmodel) {
168 -webkit-box-sizing: @boxmodel;
169 -moz-box-sizing: @boxmodel;
170 box-sizing: @boxmodel;
174 // For selecting text on the page
175 .user-select(@select) {
176 -webkit-user-select: @select;
177 -moz-user-select: @select;
178 -ms-user-select: @select; // IE10+
179 -o-user-select: @select;
180 user-select: @select;
184 .resizable(@direction) {
185 resize: @direction; // Options: horizontal, vertical, both
186 overflow: auto; // Safari fix
189 // CSS3 Content Columns
190 .content-columns(@column-count; @column-gap: @grid-gutter-width) {
191 -webkit-column-count: @column-count;
192 -moz-column-count: @column-count;
193 column-count: @column-count;
194 -webkit-column-gap: @column-gap;
195 -moz-column-gap: @column-gap;
196 column-gap: @column-gap;
199 // Optional hyphenation
200 .hyphens(@mode: auto) {
201 word-wrap: break-word;
202 -webkit-hyphens: @mode;
204 -ms-hyphens: @mode; // IE10+
213 @opacity-ie: (@opacity * 100);
214 filter: ~"alpha(opacity=@{opacity-ie})";
220 // --------------------------------------------------
224 // Horizontal gradient, from left to right
226 // Creates two color stops, start and end, by specifying a color and position for each color stop.
227 // Color stops are not available in IE9 and below.
228 .horizontal(@start-color: #555; @end-color: #333; @start-percent: 0%; @end-percent: 100%) {
229 background-image: -webkit-gradient(linear, @start-percent top, @end-percent top, from(@start-color), to(@end-color)); // Safari 4+, Chrome 2+
230 background-image: -webkit-linear-gradient(left, color-stop(@start-color @start-percent), color-stop(@end-color @end-percent)); // Safari 5.1+, Chrome 10+
231 background-image: -moz-linear-gradient(left, @start-color @start-percent, @end-color @end-percent); // FF 3.6+
232 background-image: linear-gradient(to right, @start-color @start-percent, @end-color @end-percent); // Standard, IE10
233 background-repeat: repeat-x;
234 filter: e(%("progid:DXImageTransform.Microsoft.gradient(startColorstr='%d', endColorstr='%d', GradientType=1)",argb(@start-color),argb(@end-color))); // IE9 and down
237 // Vertical gradient, from top to bottom
239 // Creates two color stops, start and end, by specifying a color and position for each color stop.
240 // Color stops are not available in IE9 and below.
241 .vertical(@start-color: #555; @end-color: #333; @start-percent: 0%; @end-percent: 100%) {
242 background-image: -webkit-gradient(linear, left @start-percent, left @end-percent, from(@start-color), to(@end-color)); // Safari 4+, Chrome 2+
243 background-image: -webkit-linear-gradient(top, @start-color, @start-percent, @end-color, @end-percent); // Safari 5.1+, Chrome 10+
244 background-image: -moz-linear-gradient(top, @start-color @start-percent, @end-color @end-percent); // FF 3.6+
245 background-image: linear-gradient(to bottom, @start-color @start-percent, @end-color @end-percent); // Standard, IE10
246 background-repeat: repeat-x;
247 filter: e(%("progid:DXImageTransform.Microsoft.gradient(startColorstr='%d', endColorstr='%d', GradientType=0)",argb(@start-color),argb(@end-color))); // IE9 and down
250 .directional(@start-color: #555; @end-color: #333; @deg: 45deg) {
251 background-repeat: repeat-x;
252 background-image: -webkit-linear-gradient(@deg, @start-color, @end-color); // Safari 5.1+, Chrome 10+
253 background-image: -moz-linear-gradient(@deg, @start-color, @end-color); // FF 3.6+
254 background-image: linear-gradient(@deg, @start-color, @end-color); // Standard, IE10
256 .horizontal-three-colors(@start-color: #00b3ee; @mid-color: #7a43b6; @color-stop: 50%; @end-color: #c3325f) {
257 background-image: -webkit-gradient(left, linear, 0 0, 0 100%, from(@start-color), color-stop(@color-stop, @mid-color), to(@end-color));
258 background-image: -webkit-linear-gradient(left, @start-color, @mid-color @color-stop, @end-color);
259 background-image: -moz-linear-gradient(left, @start-color, @mid-color @color-stop, @end-color);
260 background-image: linear-gradient(to right, @start-color, @mid-color @color-stop, @end-color);
261 background-repeat: no-repeat;
262 filter: e(%("progid:DXImageTransform.Microsoft.gradient(startColorstr='%d', endColorstr='%d', GradientType=1)",argb(@start-color),argb(@end-color))); // IE9 and down, gets no color-stop at all for proper fallback
264 .vertical-three-colors(@start-color: #00b3ee; @mid-color: #7a43b6; @color-stop: 50%; @end-color: #c3325f) {
265 background-image: -webkit-gradient(linear, 0 0, 0 100%, from(@start-color), color-stop(@color-stop, @mid-color), to(@end-color));
266 background-image: -webkit-linear-gradient(@start-color, @mid-color @color-stop, @end-color);
267 background-image: -moz-linear-gradient(top, @start-color, @mid-color @color-stop, @end-color);
268 background-image: linear-gradient(@start-color, @mid-color @color-stop, @end-color);
269 background-repeat: no-repeat;
270 filter: e(%("progid:DXImageTransform.Microsoft.gradient(startColorstr='%d', endColorstr='%d', GradientType=0)",argb(@start-color),argb(@end-color))); // IE9 and down, gets no color-stop at all for proper fallback
272 .radial(@inner-color: #555; @outer-color: #333) {
273 background-image: -webkit-gradient(radial, center center, 0, center center, 460, from(@inner-color), to(@outer-color));
274 background-image: -webkit-radial-gradient(circle, @inner-color, @outer-color);
275 background-image: -moz-radial-gradient(circle, @inner-color, @outer-color);
276 background-image: radial-gradient(circle, @inner-color, @outer-color);
277 background-repeat: no-repeat;
279 .striped(@color: #555; @angle: 45deg) {
280 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));
281 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);
282 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);
283 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);
287 // Reset filters for IE
289 // When you need to remove a gradient background, don't forget to use this to reset
290 // the IE filter for IE9 and below.
292 filter: e(%("progid:DXImageTransform.Microsoft.gradient(enabled = false)"));
299 // Short retina mixin for setting background-image and -size
301 .img-retina(@file-1x; @file-2x; @width-1x; @height-1x) {
302 background-image: url("@{file-1x}");
305 only screen and (-webkit-min-device-pixel-ratio: 2),
306 only screen and ( min--moz-device-pixel-ratio: 2),
307 only screen and ( -o-min-device-pixel-ratio: 2/1),
308 only screen and ( min-device-pixel-ratio: 2),
309 only screen and ( min-resolution: 192dpi),
310 only screen and ( min-resolution: 2dppx) {
311 background-image: url("@{file-2x}");
312 background-size: @width-1x @height-1x;
319 // Keep images from scaling beyond the width of their parents.
321 .img-responsive(@display: block;) {
323 max-width: 100%; // Part 1: Set a maximum relative to the parent
324 height: auto; // Part 2: Scale the height according to the width, otherwise you get stretching
329 // --------------------------------------------------
331 // Horizontal dividers
332 // -------------------------
333 // Dividers (basically an hr) within dropdowns and nav lists
334 .nav-divider(@color: #e5e5e5) {
336 margin: ((@line-height-computed / 2) - 1) 0;
338 background-color: @color;
342 // -------------------------
343 .panel-variant(@border; @heading-text-color; @heading-bg-color; @heading-border) {
344 border-color: @border;
346 color: @heading-text-color;
347 background-color: @heading-bg-color;
348 border-color: @heading-border;
349 + .panel-collapse .panel-body {
350 border-top-color: @border;
354 + .panel-collapse .panel-body {
355 border-bottom-color: @border;
361 // -------------------------
362 .alert-variant(@background; @border; @text-color) {
363 background-color: @background;
364 border-color: @border;
367 border-top-color: darken(@border, 5%);
370 color: darken(@text-color, 10%);
375 // -------------------------
376 .table-row-variant(@state; @background; @border) {
377 // Exact selectors below required to override `.table-striped` and prevent
378 // inheritance to nested tables.
381 .table > tfoot > tr {
386 background-color: @background;
387 border-color: @border;
391 // Hover states for `.table-hover`
392 // Note: this is not available for cells or rows within `thead` or `tfoot`.
393 .table-hover > tbody > tr {
396 &.@{state}:hover > td {
397 background-color: darken(@background, 5%);
398 border-color: darken(@border, 5%);
404 // -------------------------
405 // Easily pump out default styles, as well as :hover, :focus, :active,
406 // and disabled options for all buttons
407 .button-variant(@color; @background; @border) {
409 background-color: @background;
410 border-color: @border;
416 .open .dropdown-toggle& {
418 background-color: darken(@background, 8%);
419 border-color: darken(@border, 12%);
423 .open .dropdown-toggle& {
424 background-image: none;
428 fieldset[disabled] & {
434 background-color: @background;
435 border-color: @border
441 // -------------------------
442 .button-size(@padding-vertical; @padding-horizontal; @font-size; @line-height; @border-radius) {
443 padding: @padding-vertical @padding-horizontal;
444 font-size: @font-size;
445 line-height: @line-height;
446 border-radius: @border-radius;
450 // -------------------------
451 .pagination-size(@padding-vertical; @padding-horizontal; @font-size; @border-radius) {
455 padding: @padding-vertical @padding-horizontal;
456 font-size: @font-size;
461 .border-left-radius(@border-radius);
467 .border-right-radius(@border-radius);
474 // -------------------------
475 .label-variant(@color) {
476 background-color: @color;
480 background-color: darken(@color, 10%);
485 // Navbar vertical align
486 // -------------------------
487 // Vertically center elements in the navbar.
488 // Example: an element has a height of 30px, so write out `.navbar-vertical-align(30px);` to calculate the appropriate top margin.
489 .navbar-vertical-align(@element-height) {
490 margin-top: ((@navbar-height - @element-height) / 2);
491 margin-bottom: ((@navbar-height - @element-height) / 2);
495 // -------------------------
496 .progress-bar-variant(@color) {
497 background-color: @color;
498 .progress-striped & {
499 #gradient > .striped(@color);
503 // Responsive utilities
504 // -------------------------
505 // More easily include all the states for responsive-utilities.less.
506 .responsive-visibility() {
507 display: block !important;
508 tr& { display: table-row !important; }
510 td& { display: table-cell !important; }
513 .responsive-invisibility() {
514 display: none !important;
515 tr& { display: none !important; }
517 td& { display: none !important; }
523 // Centered container element
530 // Creates a wrapper for a series of columns
531 .make-row(@gutter: @grid-gutter-width) {
532 // Then clear the floated columns
536 @media (min-width: @screen-small) {
537 margin-left: (@gutter / -2);
538 margin-right: (@gutter / -2);
542 // Negative margin nested rows out to align the content of columns
544 margin-left: (@gutter / -2);
545 margin-right: (@gutter / -2);
549 // Generate the extra small columns
550 .make-xs-column(@columns; @gutter: @grid-gutter-width) {
553 width: percentage((@columns / @grid-columns));
554 // Prevent columns from collapsing when empty
556 // Inner gutter via padding
557 padding-left: (@gutter / 2);
558 padding-right: (@gutter / 2);
561 // Generate the small columns
562 .make-sm-column(@columns; @gutter: @grid-gutter-width) {
564 // Prevent columns from collapsing when empty
566 // Inner gutter via padding
567 padding-left: (@gutter / 2);
568 padding-right: (@gutter / 2);
570 // Calculate width based on number of columns available
571 @media (min-width: @screen-small) {
573 width: percentage((@columns / @grid-columns));
577 // Generate the small column offsets
578 .make-sm-column-offset(@columns) {
579 @media (min-width: @screen-small) {
580 margin-left: percentage((@columns / @grid-columns));
583 .make-sm-column-push(@columns) {
584 @media (min-width: @screen-small) {
585 left: percentage((@columns / @grid-columns));
588 .make-sm-column-pull(@columns) {
589 @media (min-width: @screen-small) {
590 right: percentage((@columns / @grid-columns));
594 // Generate the medium columns
595 .make-md-column(@columns; @gutter: @grid-gutter-width) {
597 // Prevent columns from collapsing when empty
599 // Inner gutter via padding
600 padding-left: (@gutter / 2);
601 padding-right: (@gutter / 2);
603 // Calculate width based on number of columns available
604 @media (min-width: @screen-medium) {
606 width: percentage((@columns / @grid-columns));
610 // Generate the large column offsets
611 .make-md-column-offset(@columns) {
612 @media (min-width: @screen-medium) {
613 margin-left: percentage((@columns / @grid-columns));
616 .make-md-column-push(@columns) {
617 @media (min-width: @screen-medium) {
618 left: percentage((@columns / @grid-columns));
621 .make-md-column-pull(@columns) {
622 @media (min-width: @screen-medium) {
623 right: percentage((@columns / @grid-columns));
627 // Generate the large columns
628 .make-lg-column(@columns; @gutter: @grid-gutter-width) {
630 // Prevent columns from collapsing when empty
632 // Inner gutter via padding
633 padding-left: (@gutter / 2);
634 padding-right: (@gutter / 2);
636 // Calculate width based on number of columns available
637 @media (min-width: @screen-large) {
639 width: percentage((@columns / @grid-columns));
643 // Generate the large column offsets
644 .make-lg-column-offset(@columns) {
645 @media (min-width: @screen-large) {
646 margin-left: percentage((@columns / @grid-columns));
649 .make-lg-column-push(@columns) {
650 @media (min-width: @screen-large) {
651 left: percentage((@columns / @grid-columns));
654 .make-lg-column-pull(@columns) {
655 @media (min-width: @screen-large) {
656 right: percentage((@columns / @grid-columns));
661 // Form validation states
663 // Used in forms.less to generate the form validation CSS for warnings, errors,
666 .form-control-validation(@text-color: #555; @border-color: #ccc; @background-color: #f5f5f5) {
667 // Color the label and help text
672 // Set the border and box shadow on specific inputs to match
674 border-color: @border-color;
675 .box-shadow(inset 0 1px 1px rgba(0,0,0,.075)); // Redeclare so transitions work
677 border-color: darken(@border-color, 10%);
678 @shadow: inset 0 1px 1px rgba(0,0,0,.075), 0 0 6px lighten(@border-color, 20%);
679 .box-shadow(@shadow);
682 // Set validation states also for addons
685 border-color: @border-color;
686 background-color: @background-color;
690 // Form control focus state
692 // Generate a customized focus state and for any input with the specified color,
693 // which defaults to the `@input-focus-border` variable.
695 // We highly encourage you to not customize the default value, but instead use
696 // this to tweak colors on an as-needed basis. This aesthetic change is based on
697 // WebKit's default styles, but applicable to a wider range of browsers. Its
698 // usability and accessibility should be taken into account with any change.
700 // Example usage: change the default blue border and shadow to white for better
701 // contrast against a dark gray background.
703 .form-control-focus(@color: @input-border-focus) {
704 @color-rgba: rgba(red(@color), green(@color), blue(@color), .6);
706 border-color: @color;
708 .box-shadow(~"inset 0 1px 1px rgba(0,0,0,.075), 0 0 8px @{color-rgba}");
712 // Form control sizing
714 // Relative text size, padding, and border-radii changes for form controls. For
715 // horizontal sizing, wrap controls in the predefined grid classes. `<select>`
716 // element gets special love because it's special, and that's a fact!
718 .input-size(@input-height; @padding-vertical; @padding-horizontal; @font-size; @line-height; @border-radius) {
719 height: @input-height;
720 padding: @padding-vertical @padding-horizontal;
721 font-size: @font-size;
722 line-height: @line-height;
723 border-radius: @border-radius;
726 height: @input-height;
727 line-height: @input-height;