超链接：
a:link{ color :#00688B;text-decoration:none;font-size: small}//未
a:hover{ color :#000000;text-decoration:underline}
a:active{ color :Gray ;text-decoration:underline}
a:visited{ color :#00688B;text-decoration:none;font-size: small }//过
水平线：
1、普通分隔线：<hr>
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2、分隔线宽度属性：<hr width=50%> 或者 <hr width=250> （宽度为实际点数或百分比）
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3、分隔线位置属性：<hr align=right width=50%> （位置分为 Left、Center、Right 三种）
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4、分隔线厚度属性：<hr style="height:10px"> （奇怪，height=10 似乎不能起到效果）
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5、分隔线无阴影属性：<hr style="height:10px" noshade>
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6、分隔线彩色属性：<hr color=red> 或者 <hr color=#FF0000> （颜色可调）
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7、渐变颜色的分隔线：
<hr style="filter:alpha(opacity=5,finishopacity=100,style=1);height:10px" color=green>
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<hr style="filter:alpha(opacity=100,finishopacity=5,style=1);height:10px" color=blue>
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8、中心透明的分隔线：
<hr style="filter:alpha(opacity=0,finishopacity=100,style=2);height:12px" color=orange>
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<hr style="filter:alpha(opacity=0,finishopacity=100,style=3);height:12px" color=#FF00FF>
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9、中心不透明的分隔线：
<hr style="filter:alpha(opacity=100,finishopacity=0,style=2);height:15px" color=yellow>
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<hr style="filter:alpha(opacity=100,finishopacity=0,style=3);height:15px" color=#00FFFF>
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10、波浪线：
<hr style="filter:wave(strength=9,freq=2,lightstrength=20,phase=9);height:15px" color=pink width=95%>
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11、三色线：
<hr style="border-top: #ff0000 solid; color: #00ff00; border-bottom: #0000ff solid; height: 9px">
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12、虚线：
<hr style="border-top: 2px dashed; border-bottom: 2px dashed; height: 2px" color=black>
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13、竖线：
<hr style="height:100px; width:4px" color=orange>
<hr style="filter:alpha(opacity=100,finishopacity=5,style=2); height:100px; width:5px" color=navy>
<hr style="filter:alpha(opacity=0,finishopacity=100,style=2);height:100px; width:4px" color=red>
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