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CSS 面试 #37

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ChelesteWang opened this issue Oct 24, 2021 · 0 comments
Open

CSS 面试 #37

ChelesteWang opened this issue Oct 24, 2021 · 0 comments

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@ChelesteWang
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CSS 画三角

原理：border 属性绘制的边框为梯形,只保留一面其他的颜色都设置为transparent透明

span {
    width: 0;
    height: 0;
    border-top: 40px solid transparent;
    border-left: 40px solid transparent;
    border-right: 40px solid transparent;
    border-bottom: 40px solid #ff0000;
}
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@ChelesteWang