代码如下： <style type="text/css"> table{width:50%; font-size:14px; font-family:Arial; color:#333} .arrow-top,.arrow-right,.arrow-bottom,.arrow-left{font-size:0; line-height:0; height:0; width:0; cursor:pointer} .box{ border:1px solid #CCC; width:100px; height:100px; padding:10px; background:#EEE; margin:10px} .arrow{ border-width:50px; border-color:red green blue black; border-style:solid solid solid solid} .arrow-bottom{ border-width:50px; border-color:red transparent transparent transparent; border-style:solid dashed dashed dashed; border-bottom:none;} .arrow-left{ border-width:50px; border-color:transparent green transparent transparent; border-style:dashed solid dashed dashed; border-left:none;} .arrow-top{ border-width:50px; border-color:transparent transparent blue transparent; border-style:dashed dashed solid dashed; border-top:none;} .arrow-right{ border-width:50px; border-color:transparent transparent transparent black; border-style:dashed dashed dashed solid; border-right:none;} </style> <table> <tr> <td> <div class="box"> <div class="arrow"></div> </div> </td> <td> <p>.arrow{ border-width:50px; border-color:red green blue black; border-style:solid solid solid solid}</p> </td> </tr> <tr> <td> <div class="box"> <div class="arrow-top"></div> </div> </td> <td> <p>.arrow-top{ border-width:50px; border-color:red transparent transparent transparent; border-style:solid dashed dashed dashed; border-bottom:none;} </p> </td> </tr> <tr> <td> <div class="box"> <div class="arrow-right"></div> </div> </td> <td> <p>.arrow-right{ border-width:50px; border-color:transparent green transparent transparent; border-style:dashed solid dashed dashed; border-left:none;} </p> </td> </tr> <tr> <td> <div class="box"> <div class="arrow-bottom"></div> </div> </td> <td> <p>.arrow-bottom{ border-width:50px; border-color:transparent transparent blue transparent; border-style:dashed dashed solid dashed; border-top:none;} </p> </td> </tr> <tr> <td> <div class="box"> <div class="arrow-left"></div> </div> </td> <td> <p>.arrow-left{ border-width:50px; border-color:transparent transparent transparent black; border-style:dashed dashed dashed solid; border-right:none;} </p> </td> </tr> </table> 用CSS样式实现箭头效果如下： .arrow{ border-width:50px; border-color:red green blue black; border-style:solid solid solid solid} .arrow-top{ border-width:50px; border-color:red transparent transparent transparent; border-style:solid dashed dashed dashed; border-bottom:none;} .arrow-right{ border-width:50px; border-color:transparent green transparent transparent; border-style:dashed solid dashed dashed; border-left:none;} .arrow-bottom{ border-width:50px; border-color:transparent transparent blue transparent; border-style:dashed dashed solid dashed; border-top:none;} .arrow-left{ border-width:50px; border-color:transparent transparent transparent black; border-style:dashed dashed dashed solid; border-right:none;}

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