将鼠标移至链接上改变样式

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a.one:link {color:#ff0000;}
a.one:visited {color:#0000ff;}
a.one:hover {color:#ffcc00;}
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a.two:link {color:#ff0000;}
a.two:visited {color:#0000ff;}
a.two:hover {font-size:150%;}
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a.three:link {color:#ff0000;}
a.three:visited {color:#0000ff;}
a.three:hover {background:#66ff66;}
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a.four:link {color:#ff0000;}
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a.four:hover {font-family:monospace;}
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<p>将鼠标移至链接上改变样式.</p>
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<p><b><a class="one" href="/css/" target="_blank">这个链接改变颜色</a></b></p>
<p><b><a class="two" href="/css/" target="_blank">这个链接改变字体大小</a></b></p>
<p><b><a class="three" href="/css/" target="_blank">这个链接改变背景颜色</a></b></p>
<p><b><a class="four" href="/css/" target="_blank">这个链接改变字体类型</a></b></p>
<p><b><a class="five" href="/css/" target="_blank">这个链接改变文字修饰</a></b></p>
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