使用CSS绘制Triangle三角形

热度 ℃


像上面图片中的几种三角形，不需要使用图片，使用 CSS 即可方便实现，甚至还能更改尺寸。

下面的 css 样式定义了上图中的各种样式。

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<style>
    div {
        float: left;
        margin-right: 8px;
        background: #b4b472;
    }
    #triangle-up {
        width: 0;
        height: 0;
        border-left: 25px solid transparent;
        border-right: 25px solid transparent;
        border-bottom: 50px solid red;
    }
    #triangle-down {
        width: 0;
        height: 0;
        border-left: 25px solid transparent;
        border-right: 25px solid transparent;
        border-top: 50px solid red;
    }
    #triangle-left {
        width: 0;
        height: 0;
        border-bottom: 25px solid transparent;
        border-top: 25px solid transparent;
        border-right: 50px solid red;
    }
    #triangle-right {
        width: 0;
        height: 0;
        border-bottom: 25px solid transparent;
        border-top: 25px solid transparent;
        border-left: 50px solid red;
    }
    #triangle-topleft {
        width: 0;
        height: 0;
        border-top: 50px solid red;
        border-right: 50px solid transparent;
    }
    #triangle-topright {
        width: 0;
        height: 0;
        border-top: 50px solid red;
        border-left: 50px solid transparent;
    }
    #triangle-bottomleft {
        width: 0;
        height: 0;
        border-bottom: 50px solid red;
        border-right: 50px solid transparent;
    }
    #triangle-bottomright {
        width: 0;
        height: 0;
        border-bottom: 50px solid red;
        border-left: 50px solid transparent;
    }
    #triangle-up-down {
        width: 0;
        height: 0;
        border-left: 25px solid transparent;
        border-right: 25px solid transparent;
        border-bottom: 25px solid red;
        border-top: 25px solid red;
    }
    #triangle-left-right {
        width: 0;
        height: 0;
        border-top: 25px solid transparent;
        border-bottom: 25px solid transparent;
        border-left: 25px solid red;
        border-right: 25px solid red;
    }
</style>