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面试题:使用 CSS 画一个三角形 #123

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Description

@sisterAn
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>画三角形</title>
    <style>
        .triggle{
            width: 0px;
            height: 0px;
            border-width: 100px;
            border-style: dotted dotted solid dotted;
            border-color: transparent transparent red transparent;
        }
    </style>
</head>
<body>
    <div class="triggle"></div>
</body>
</html>


前端小技巧:边框写三角形

Activity

  1. latte03 commented on Nov 2, 2020

    @latte03

    通过border模拟实现

    当div 的宽高为0,存在边框的时候,四条边框的中心将会是一个点,通过设置其他三条边框的透明度,实现三角形。

    div{
      width:0;
      height:0;
      border-width:8px;
      border-style:solid;
      border-top-color: transparent;
      border-right-color: transparent;
      border-bottom-color: transparent;
      border-left-color: red;
    }
  2. U-LAN commented on Nov 2, 2020

    @U-LAN

    通过border模拟实现

    当div 的宽高为0,存在边框的时候,四条边框的中心将会是一个点,通过设置其他三条边框的透明度,实现三角形。

    div{
      width:0;
      height:0;
      border-width:8px;
      border-top-color: transparent;
      border-right-color: transparent;
      border-bottom-color: transparent;
      border-left-color: red;
    }

    显示不出来需要再加一个属性: border-style:solid;

  3. latte03 commented on Nov 2, 2020

    @latte03

    通过border模拟实现

    当div 的宽高为0,存在边框的时候,四条边框的中心将会是一个点,通过设置其他三条边框的透明度,实现三角形。

    div{

    width:0;

    height:0;

    border-width:8px;

    border-top-color: transparent;

    border-right-color: transparent;

    border-bottom-color: transparent;

    border-left-color: red;

    }

    显示不出来需要再加一个属性: border-style:solid;

    啊 漏了..补上

  4. ryadav96 commented on Feb 13, 2021

    @ryadav96

    Using clip-path property

    .triangle {
    width:200px;
    height: 200px;
    background-color: #119933;
    clip-path: polygon(50% 0, 50% 0, 100% 100%, 0 100%);
    }

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