实现大屏适配方案 

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        * {
        margin: 0;
        padding: 0;
        }
        body {
        position: relative;
        width: 1920px;
        height: 1080px;
        border: 3px solid red;
        transform-origin: left top;
        box-sizing: border-box;
        }
        ul {
        display: flex;
        flex-direction: row;
        flex-wrap: wrap;
        width: 100%;
        height: 100%;
        }
       
        li {
        width: 33.333%;
        height: 50%;
        font-size: 30px;
        list-style: none;
        border: 3px solid green;
        box-sizing: border-box;
        }
        </style>
</head>
<body>
    <ul>
        <li>1</li>
        <li>2</li>
        <li>3</li>
        <li>4</li>
        <li>5</li>
        <li>6</li>
      </ul>
    <script>
      
      let targetX=1920
      let targetY=1080
      let targetRatio=16/9//宽高比例
      let currentX=document.documentElement.clientWidth
      let currentY=document.documentElement.clientHeight
      console.log(currentX,currentY)
      
      //计算高宽比例
      let scaleRadio=currentX/targetX//参照宽度进行缩放
      let currentRadio=currentX/currentY//当前屏幕宽高比例
    //   超宽屏
      if(currentRadio>targetRatio){
        console.log('超宽屏')
          //设置缩放比例
          scaleRadio=currentY/targetY
          document.body.style=`transform:scale(${scaleRadio}) translateX(-50%);left:50%`
      }else{
        console.log('标准屏')
          //设置缩放比例
          scaleRadio=currentX/targetX
          document.body.style=`transform:scale(${scaleRadio})`

      }
      //设置rem基准值

    </script>       
</body>
</html>

　　

方案一：scale实现大屏适配

 

posted @ 2024-05-20 16:02  采姑娘的小蘑菇呀  阅读(19)  评论(0)    收藏  举报