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// Compatibility for browsers.
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// rotate for ie8 and blow
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.ie-rotate(@rotation) {
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filter: progid:DXImageTransform.Microsoft.BasicImage(rotation=@rotation);
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}
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// rotate for ie8 and blow
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// degrees unit
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.ie-rotate-via-degrees(@degrees) {
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/* IE6-IE8 */
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@radians: ~`parseInt("@{degrees}") * Math.PI * 2 / 360`;
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@costheta: ~`Math.cos("@{radians}")`;
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@sintheta: ~`Math.sin("@{radians}")`;
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@negsintheta: ~`"@{sintheta}" * -1`;
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filter: ~"progid:DXImageTransform.Microsoft.Matrix(sizingMethod='auto expand', M11=@{costheta}, M12=@{negsintheta}, M21=@{sintheta}, M22=@{costheta})";
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zoom: 1;
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:root & {
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filter: none;
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}
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}
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// support rotate for all browsers
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.cross-rotate(@degrees) {
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.rotate(@degrees);
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.ie-rotate-via-degrees(@degrees);
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}
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// for iconfont font size
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// fix chrome 12px bug, support ie
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.iconfont-size-under-12px(@size, @rotate: 0deg) {
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display: inline-block;
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@font-scale: unit(@size/@font-size-base);
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font-size: @font-size-base;
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font-size: ~"@{size} \9"; // ie8-9
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transform: scale(@font-scale) rotate(@rotate);
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.ie-rotate-via-degrees(@rotate);
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:root & {
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font-size: @font-size-base; // reset ie9 and above
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}
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}
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