• CSS绘制三角形


    第一种:

    #triangle-up {
        width: 0;
        height: 0;
        border-left: 50px solid transparent;
        border-right: 50px solid transparent;
        border-bottom: 100px solid red;
    }

     

    第二种:

    #triangle-down {
        width: 0;
        height: 0;
        border-left: 50px solid transparent;
        border-right: 50px solid transparent;
        border-top: 100px solid red;
    }

    第三种:

    #triangle-left {
        width: 0;
        height: 0;
        border-top: 50px solid transparent;
        border-right: 100px solid red;
        border-bottom: 50px solid transparent;
    }

    第四种:

    #triangle-right {
        width: 0;
        height: 0;
        border-top: 50px solid transparent;
        border-left: 100px solid red;
        border-bottom: 50px solid transparent;
    }

    第五种:

    #triangle-topleft {
        width: 0;
        height: 0;
        border-top: 100px solid red;
        border-right: 100px solid transparent;
    }

    第六种:

    #triangle-topright {
        width: 0;
        height: 0;
        border-top: 100px solid red;
        border-left: 100px solid transparent; 
    }

    第七种:

    #triangle-bottomleft {
        width: 0;
        height: 0;
        border-bottom: 100px solid red;
        border-right: 100px solid transparent;
    }

    第八种:

    #triangle-bottomright {
        width: 0;
        height: 0;
        border-bottom: 100px solid red;
        border-left: 100px solid transparent;
    }

    解决低版本下的兼容问题:

    问题:IE6下三角带有黑色背景

    解决方案:dashed

    .sanjiao{
        width: 0;height: 0;overflow: hidden;border-width: 10px;
        border-color: red transparent transparent transparent;
        border-style:solid dashed dashed dashed; 
    }
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  • 原文地址:https://www.cnblogs.com/Han39/p/7218116.html
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