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<title>The source code</title>
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<pre class="prettyprint lang-js">@function pad($radius) {
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$radius: boxmax($radius);
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$radius: parseint($radius);
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@if $radius >= 10 {
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@return $radius;
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}
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@else {
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@return "0" + $radius;
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}
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}
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@function nopx ($value) {
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@if $value == 0 {
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@return 0;
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}
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@return $value / 1px;
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}
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@mixin x-frame(
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$cls,
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$ui: null,
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$border-radius: 0px,
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$border-width: 0px,
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$padding: null,
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$background-color: null,
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$background-gradient: null,
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$table: false,
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$background-direction: top,
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$include-frame-rtl: false,
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// an optional ui to use for images
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$img-ui: $ui,
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$background-stretch: null
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) {
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$cls-ui: $cls;
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$cls-img-ui: null;
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@if $ui != null {
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$cls-ui: $cls + '-' + $ui;
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$cls-img-ui: $cls + '-' + $img-ui;
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}
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$vertical: false;
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@if $background-gradient != null and ($background-direction == left or $background-direction == right) {
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$vertical: true;
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}
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$background-stretch-position: null;
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@if $background-stretch == null {
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@if $vertical {
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$background-stretch: left;
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} @else {
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$background-stretch: bottom;
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}
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}
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@if $background-stretch == top {
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$background-stretch-position: bottom;
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} @else if $background-stretch == bottom {
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$background-stretch-position: top;
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} @else if $background-stretch == left {
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$background-stretch-position: right;
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} @else if $background-stretch == right {
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$background-stretch-position: left;
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}
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@if $background-gradient != null {
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$stretch: slicer-background-stretch($cls-ui, $background-stretch);
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}
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// We use the border-radius of the two corners on each edge to determine the "edge's
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// border-radius". For IE, the framing elements need to be as large as the larger of
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// the border-radius and the border-width on each edge. These values are passed on to
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// JavaScript using an encoded background-image url and the equivalent operations are
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// handled by Renderable.js.
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//
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$frame-top: max(top($border-width), max(top($border-radius), right($border-radius)));
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$frame-right: max(right($border-width), max(right($border-radius), bottom($border-radius)));
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$frame-bottom: max(bottom($border-width), max(bottom($border-radius), left($border-radius)));
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$frame-left: max(left($border-width), max(left($border-radius), top($border-radius)));
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$frame-max: max(max($frame-top, $frame-bottom), max($frame-left, $frame-right));
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// For CSS3 browsers, if the border-radius is larger than the border-width, we need to
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// apply padding to inset the content. These values can never be 0 because frame-xxx
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// includes border-xxx in its max.
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//
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$padding-top: $frame-top - top($border-width);
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$padding-right: $frame-right - right($border-width);
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$padding-bottom: $frame-bottom - bottom($border-width);
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$padding-left: $frame-left - left($border-width);
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// If there is additional padding, this is understood to be a request to ensure that
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// the content is **at least** this far from the inside of the border. If the framing
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// requires more padding, that wins. This is the amount of padding you need in CSS3
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// browsers.
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//
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@if $padding != null {
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$padding-top: max($padding-top, top($padding));
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$padding-right: max($padding-right, right($padding));
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$padding-bottom: max($padding-bottom, bottom($padding));
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$padding-left: max($padding-left, left($padding));
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}
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// For IE, the framing elements are sized by frame-xxx and the "-mc" will carry the
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// extra-padding-xxx.
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//
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$extra-padding-top: max(top($border-width) + $padding-top - $frame-top, 0);
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$extra-padding-right: max(right($border-width) + $padding-right - $frame-right, 0);
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$extra-padding-bottom: max(bottom($border-width) + $padding-bottom - $frame-bottom, 0);
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$extra-padding-left: max(left($border-width) + $padding-left - $frame-left, 0);
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$framing-info: '';
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@if $table == true {
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$framing-info: $framing-info + 't';
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} @else {
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$framing-info: $framing-info + 'd';
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}
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@if $vertical == true {
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$framing-info: $framing-info + 'v';
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} @else {
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$framing-info: $framing-info + 'h';
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}
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$framing-info: $framing-info + '-' +
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nopx(top($border-radius)) + '-' +
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nopx(right($border-radius)) + '-' +
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nopx(bottom($border-radius)) + '-' +
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nopx(left($border-radius)) + '-' +
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nopx(top($border-width)) + '-' +
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nopx(right($border-width)) + '-' +
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nopx(bottom($border-width)) + '-' +
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nopx(left($border-width)) + '-' +
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nopx($padding-top) + '-' +
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nopx($padding-right) + '-' +
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nopx($padding-bottom) + '-' +
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nopx($padding-left);
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.#{$prefix}#{$cls-ui} {
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@if $supports-border-radius {
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@if length($border-radius) == 2 {
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@include border-top-left-radius(nth($border-radius, 1));
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@include border-top-right-radius(nth($border-radius, 2));
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} @else if length($border-radius) == 3 {
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@include border-top-left-radius(nth($border-radius, 1));
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@include border-top-right-radius(nth($border-radius, 2));
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@include border-bottom-right-radius(nth($border-radius, 3));
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} @else if length($border-radius) == 4 {
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@include border-top-left-radius(nth($border-radius, 1));
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@include border-top-right-radius(nth($border-radius, 2));
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@include border-bottom-right-radius(nth($border-radius, 3));
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@include border-bottom-left-radius(nth($border-radius, 4));
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} @else {
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@include border-radius($border-radius);
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}
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}
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padding: $padding-top $padding-right $padding-bottom $padding-left;
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border-width: $border-width;
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border-style: solid;
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@if $background-color != null {
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@if $supports-gradients and $background-gradient != null {
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@include background-gradient($background-color, $background-gradient, $background-direction);
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}
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@else {
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background-color: $background-color;
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}
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}
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}
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@if $include-frame-rtl {
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@if $background-direction == left {
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$background-direction: right;
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} @else if $background-direction == right {
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$background-direction: left;
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}
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@if $background-direction == left or $background-direction == right {
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.#{$prefix}rtl.#{$prefix}#{$cls-ui} {
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@include background-gradient(
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$background-color,
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$background-gradient,
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$background-direction
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);
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}
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}
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}
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@if not $supports-gradients or $compile-all {
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.#{$prefix}#{$cls-ui}-mc {
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@if $background-gradient != null {
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background-image: slicer-frame-background-image($cls-ui, '#{$cls}/#{$cls-img-ui}-fbg');
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@if $vertical {
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background-position: $background-stretch-position 0;
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} @else {
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background-position: 0 $background-stretch-position;
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}
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}
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@if $background-color != null {
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background-color: $background-color;
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}
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}
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@if $include-frame-rtl and $background-gradient != null {
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.#{$prefix}rtl.#{$prefix}#{$cls-ui}-mc {
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background-image: slicer-frame-background-image-rtl($cls-ui, '#{$cls}/#{$cls-img-ui}-fbg-rtl');
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background-position: rtl-background-position($background-stretch-position 0);
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}
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}
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@if $background-gradient != null {
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.#{$prefix}nlg {
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.#{$prefix}#{$cls-ui} {
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background-image: slicer-background-image($cls-ui, '#{$cls}/#{$cls-img-ui}-bg');
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@if $vertical {
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background-position: $background-stretch-position 0;
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} @else {
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background-position: 0 $background-stretch-position;
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}
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}
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@if $include-frame-rtl {
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.#{$prefix}rtl.#{$prefix}#{$cls-ui} {
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background-image: slicer-background-image-rtl($cls-ui, '#{$cls}/#{$cls-img-ui}-bg-rtl');
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background-position: rtl-background-position($background-stretch-position 0);
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}
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}
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}
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}
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}
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@if not $supports-border-radius or $compile-all {
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.#{$prefix}nbr {
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// This rule must be in x-nbr to avoid matching on CSS3 browsers.
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.#{$prefix}#{$cls-ui} {
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padding: 0 !important;
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border-width: 0 !important;
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@include border-radius(0px);
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@if $background-color != null {
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background-color: transparent;
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} @else {
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background: #fff;
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}
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@if $background-gradient != null {
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background-image: none;
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}
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}
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}
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// This rule must be more specific than other x-nlg rules or else framing will
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// not be applied to the element. This rule must also be in x-nbr to avoid
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// matching on CSS3 browsers.
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//
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body.#{$prefix}nbr {
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.#{$prefix}#{$cls-ui}-frameInfo {
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// Pass along Div/Table, Horz/Vert, border-radius and border-width
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// Here we're encoding the framing information in an arbitrary fashion so
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// it can be parsed by the component and get information about the framing.
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// Originally, this tried to embed the information using a background image
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// pointing to about:blank#info however in IE with SSL, this would trigger
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// the insecure content warning. We also tried encoding the info using a
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// filter as follows (where framing-info is a string containg the encoded data):
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// filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(enabled=false, src="ext-frame#{$framing-info}");
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// However the filter property can only be read by IE, making it impossible
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// to debug nocss3 mode in modern browsers. Font-family meets all the
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// requirements for tunneling data to JavaScript. It can contain an
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// arbitrary string value, which can be read in JS in any browser, and it
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// does not trigger any network interactions.
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font-family: #{$framing-info};
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}
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}
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// These rules apply to elements that are not rendered on CSS3 browsers so we do
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// not need to force the browser to walk to the root of the document searching
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// for x-nbr!
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@if $vertical {
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// vertical framing element background positions
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.#{$prefix}#{$cls-ui}-tl {
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background-position: 0 0;
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}
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.#{$prefix}#{$cls-ui}-tr {
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background-position: 0 (-$frame-max);
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}
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.#{$prefix}#{$cls-ui}-bl {
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background-position: 0 (-$frame-max * 2);
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}
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.#{$prefix}#{$cls-ui}-br {
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background-position: 0 (-$frame-max * 3);
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}
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.#{$prefix}#{$cls-ui}-ml {
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background-position: (-$frame-max) 0;
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}
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.#{$prefix}#{$cls-ui}-mr {
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background-position: right 0;
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}
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.#{$prefix}#{$cls-ui}-tc {
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background-position: $background-stretch-position 0;
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}
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.#{$prefix}#{$cls-ui}-bc {
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background-position: $background-stretch-position (-$frame-max);
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}
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@if $include-frame-rtl {
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.#{$prefix}rtl.#{$prefix}#{$cls-ui}-tc {
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background-position: rtl-background-position($background-stretch-position 0);
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}
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.#{$prefix}rtl.#{$prefix}#{$cls-ui}-bc {
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background-position: rtl-background-position($background-stretch-position (-$frame-max));
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}
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}
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} @else {
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// horizontal framing element background positions
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.#{$prefix}#{$cls-ui}-tl {
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background-position: 0 (-$frame-max * 2);
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}
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.#{$prefix}#{$cls-ui}-tr {
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background-position: right (-$frame-max * 3);
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}
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.#{$prefix}#{$cls-ui}-bl {
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background-position: 0 (-$frame-max * 4);
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}
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.#{$prefix}#{$cls-ui}-br {
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background-position: right (-$frame-max * 5);
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}
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.#{$prefix}#{$cls-ui}-ml {
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background-position: 0 $background-stretch-position;
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}
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.#{$prefix}#{$cls-ui}-mr {
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background-position: right $background-stretch-position;
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}
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.#{$prefix}#{$cls-ui}-tc {
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background-position: 0 0;
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}
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.#{$prefix}#{$cls-ui}-bc {
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background-position: 0 (-$frame-max);
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}
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}
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.#{$prefix}#{$cls-ui}-tr,
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.#{$prefix}#{$cls-ui}-br,
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.#{$prefix}#{$cls-ui}-mr {
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padding-right: $frame-right;
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}
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.#{$prefix}#{$cls-ui}-tl,
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.#{$prefix}#{$cls-ui}-bl,
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.#{$prefix}#{$cls-ui}-ml {
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padding-left: $frame-left;
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}
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.#{$prefix}#{$cls-ui}-tc {
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height: $frame-top;
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}
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.#{$prefix}#{$cls-ui}-bc {
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height: $frame-bottom;
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}
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.#{$prefix}#{$cls-ui}-tl,
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.#{$prefix}#{$cls-ui}-bl,
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.#{$prefix}#{$cls-ui}-tr,
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.#{$prefix}#{$cls-ui}-br,
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.#{$prefix}#{$cls-ui}-tc,
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.#{$prefix}#{$cls-ui}-bc,
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.#{$prefix}#{$cls-ui}-ml,
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.#{$prefix}#{$cls-ui}-mr {
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zoom:1;
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@if $background-color != transparent {
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background-image: slicer-corner-sprite($cls-ui, '#{$cls}/#{$cls-img-ui}-corners');
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}
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}
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@if $background-color != transparent {
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@if $include-frame-rtl {
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.#{$prefix}rtl {
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&.#{$prefix}#{$cls-ui}-tl,
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&.#{$prefix}#{$cls-ui}-ml,
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&.#{$prefix}#{$cls-ui}-bl,
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&.#{$prefix}#{$cls-ui}-tr,
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&.#{$prefix}#{$cls-ui}-mr,
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&.#{$prefix}#{$cls-ui}-br {
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background-image: slicer-corner-sprite-rtl($cls-ui, '#{$cls}/#{$cls-img-ui}-corners-rtl');
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}
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}
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}
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}
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@if $vertical == true {
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.#{$prefix}#{$cls-ui}-tc,
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.#{$prefix}#{$cls-ui}-bc {
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zoom:1;
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@if $background-color != transparent {
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background-image: slicer-sides-sprite($cls-ui, '#{$cls}/#{$cls-img-ui}-sides');
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background-repeat: repeat-x;
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}
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}
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@if $include-frame-rtl and $background-color != transparent {
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.#{$prefix}rtl {
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&.#{$prefix}#{$cls-ui}-tc,
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&.#{$prefix}#{$cls-ui}-bc {
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background-image: slicer-sides-sprite-rtl($cls-ui, '#{$cls}/#{$cls-img-ui}-sides-rtl');
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}
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}
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}
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} @else {
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.#{$prefix}#{$cls-ui}-ml,
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.#{$prefix}#{$cls-ui}-mr {
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zoom:1;
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@if $background-color != transparent {
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background-image: slicer-sides-sprite($cls-ui, '#{$cls}/#{$cls-img-ui}-sides');
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@if $background-gradient == null {
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background-repeat: repeat-y;
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}
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}
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}
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}
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.#{$prefix}#{$cls-ui}-mc {
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padding: $extra-padding-top $extra-padding-right $extra-padding-bottom $extra-padding-left;
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}
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@if $include-ie {
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// framed components in ie7 strict mode suffer from an obscure bug that causes the tl and bl framing elements to
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// be shrink-wrapped to the width of their contents. This hack forces the elements' widths to fit to their parent
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.#{$prefix}strict .#{$prefix}ie7 {
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.#{$prefix}#{$cls-ui}-tl,
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.#{$prefix}#{$cls-ui}-bl {
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position: relative;
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right: 0;
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}
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}
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}
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}
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@include x-slicer($cls-ui);
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}
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</pre>
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