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30 lines
541 B
30 lines
541 B
<!DOCTYPE html>
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<html>
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<head>
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<meta charset="utf-8">
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<title></title>
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</head>
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<style>
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* {margin:0; padding:0;}
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html,body{height:100%;}
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.box {height:100%;background: #020622;}
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html {
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/*在根元素中计算基准值字体大小，设备宽度 / 设计稿宽度 * 100*/
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font-size: calc(100vw /1920 * 100 );
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}
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#box {
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width: 19.2rem;
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height: 1rem;
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background-color: aqua;
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font-size: 1rem;
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}
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</style>
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<body>
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<div id="box">
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测试rem
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</div>
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</body>
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</html>
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