38 lines
704 B
HTML
38 lines
704 B
HTML
<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta http-equiv="X-UA-Compatible" content="IE=edge">
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<meta name="viewport" content="width-device-width,initial-scale=1.0">
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<title>怪异盒模型 </title>
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<style>
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#app {
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width: 100px;
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height: 100px;
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background-color: orangered;
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/* 怪异盒模型 */
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box-sizing: border-box;
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padding: 20px;
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/* 边框 和 内边距 都不会改变盒子的大小
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注意 边框 边距 不能大于盒子本身的大小
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*/
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}
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</style>
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</head>
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<body>
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<div id="app">
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</div>
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</body>
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</html> |