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<!DOCTYPE html>
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<html>
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<head>
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<style>
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div
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{
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position:relative;
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height:60px;
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width:60px;
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background-color:red;
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transform:rotateY(180deg);
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-webkit-transform:rotateY(180deg); /* Chrome and Safari */
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-moz-transform:rotateY(180deg); /* Firefox */
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}
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#div1
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{
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-webkit-backface-visibility:hidden;
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-moz-backface-visibility:hidden;
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-ms-backface-visibility:hidden;
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}
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#div2
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{