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<head> <title>纯CSS无图片带箭头的DIV方框</title> <style> div.container{position:absolute; top:30px; left:40px; font-size: 9pt; display:block; height:100px; width:200px; background-color:transparent; *border:1px solid #666; } s{ position:absolute; top:-20px; *top:-22px; left:20px; display:block; height:0; width:0; font-size: 0; line-height: 0; border-color:transparent transparent #666 transparent; border-style:dashed dashed solid dashed; border-width:10px; } i{position:absolute; top:-9px; *top:-9px; left:-10px; display:block; height:0; width:0; font-size: 0; line-height: 0; border-color:transparent transparent #fff transparent; border-style:dashed dashed solid dashed; border-width:10px; } .content{ border:1px solid #666; -moz-border-radius:3px; -webkit-border-radius:3px; position:absolute; background-color:#fff; width:100%; height:100%; padding:5px; *top:-2px; *border-top:1px solid #666; *border-top:1px solid #666; *border-left:none; *border-right:none; *height:102px; box-shadow: 3px 3px 4px #999; -moz-box-shadow: 3px 3px 4px #999; -webkit-box-shadow: 3px 3px 4px #999; /* For IE 5.5 - 7 */ filter: progid:DXImageTransform.Microsoft.Shadow(Strength=4, Direction=135, Color='#999999'); /* For IE 8 */ -ms-filter: "progid:DXImageTransform.Microsoft.Shadow(Strength=4, Direction=135, Color='#999999')"; } </style> </head> <body> <div class="container"> <div class="content"><br>这是框中的文字，可动态显示。高度自动增加，应该不错吧^_^</div> <s> <i></i> </s> </div> <br /> </body> </html>