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@@ -0,0 +1,28 @@
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+* {
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+ margin: 0;
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+ padding: 0;
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+}
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+ul {
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+ display: flex;
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+ list-style: none;
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+ flex-wrap: wrap;
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+}
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+li {
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+ width: 20%;
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+ height: 100px;
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+ background: #f00;
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+ border: 1px solid #ff0;
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+ padding: 10px;
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+ margin: 10px;
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+ box-sizing: content-box;
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+}
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+/*
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+ 盒模型:
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+
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+ (W3c万维网)标准盒模型:box-sizing:content-box
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+ 内容计算:content = width(height)
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+ 盒子的总宽度:content + padding + border +margin
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+ (IE盒模型)怪异盒模型:box-sizing:border-box;
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+ 内容计算:content = width(height) + padding + border
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+ 盒子的总宽度:content + margin
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+*/
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