无标题文档 *{ margin:0; padding:0; }body{ font-size:12px; }.div{ border:1px solid #AAAAAA; width:440px; height:220px; }.div .div1 { border-color: rgba(0, 0, 0, 0) rgba(0, 0, 0, 0) #AAAAAA; border-style: dashed dashed solid; border-width: 0 10px 10px; display: block; font-size: 0; height: 0; left: 0; line-height: 0; margin-left: -10px; position: absolute; top: 50%; width: 0; z-index: 100;}.div2:after { clear: both; content: "."; display: block; height: 0; visibility: hidden;}.div .div1 .div2 { border-color: rgba(0, 0, 0, 0) rgba(0, 0, 0, 0) #FFFFFF; border-style: dashed dashed solid; border-width: 0 10px 10px; display: block; font-size: 0; height: 0; left: -10px; line-height: 0; position: absolute; top: 1px; width: 0;}
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css3这个三角怎么旋转_html/css_WEB-ITnose
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