案例：CSS案例     状态：可编辑再运行    进入竖版
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<html>
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<head>
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<style type="text/css">
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#customers
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  {
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  font-family:"Trebuchet MS", Arial, Helvetica, sans-serif;
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  width:100%;
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  border-collapse:collapse;
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  }
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​
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#customers td, #customers th
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  {
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  font-size:1em;
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  border:1px solid #98bf21;
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  padding:3px 7px 2px 7px;
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  }
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​
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#customers th
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  {
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  font-size:1.1em;
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  text-align:left;
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  padding-top:5px;
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  padding-bottom:4px;
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  background-color:#A7C942;
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  color:#ffffff;
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  }
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​
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#customers tr.alt td
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  {
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  color:#000000;
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  background-color:#EAF2D3;
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  }
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</style>
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</head>
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​
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<body>
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<table id="customers">
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<tr>
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<th>Company</th>
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<th>Contact</th>
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<th>Country</th>
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</tr>
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​
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<tr>
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<td>Apple</td>
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<td>Steven Jobs</td>
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<td>USA</td>
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</tr>