案例：CSS3 案例     状态：可编辑再运行    进入竖版
 运行结果　
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<html>
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<head>
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<style type="text/css">
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p.soliddouble {border-style: solid double}
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p.doublesolid {border-style: double solid}
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p.groovedouble {border-style: groove double}
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p.three {border-style: solid double groove}
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</style>
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</head>
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​
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<body>
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<p class="soliddouble">Some text</p>
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​
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<p class="doublesolid">Some text</p>
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​
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<p class="groovedouble">Some text</p>
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​
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<p class="three">Some text</p>
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</body>
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​
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</html>
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​