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利用css过滤实现网页夜模式适配
落花微雨的博客
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利用css过滤实现网页暗夜模式适配

关键词：

  1. filter：invert() // 实现网页颜色变化 0=>1 网页由白变黑，1=>0 网页由黑变白。

  2. filter：hue-rotate() // 改变元素颜色，色调旋转 取值范围(0-360deg)

    思路 ：通过改变filter：invert（）的值来实现网页颜色反转

    代码：

    `<body style="filter: invert(0);">
    <button id="switch">风格切换</button>
    <script>

    1.  var btn = document.getElementById('switch');
    2.  btn.addEventListener('click', function(){
    3.      console.log(document.getElementsByTagName('body')[0].style.filter);
    4.      if(document.getElementsByTagName('body')[0].style.filter == 'invert(0)'){
    5.          document.getElementsByTagName('body')[0].style.filter = 'invert(1)'
    6.      }else{
    7.          document.getElementsByTagName('body')[0].style.filter = 'invert(0)'
    8.      }
    9.  })

    </script>
    </body>`

    css 样式

    html{ background: #fff; } body{ background: #fff; filter: invert(1) hue-rotate(270deg); transform: all 3s ease; }

    这个就很有意思，html，body必须加背景色，不然过滤不会生效

效果预览

filter：invert（0）
filter：invert（1）

有点潦草，不影响使用。

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