Vue的垂直水平居中运用于position: fixed;position: absolute;

<!DOCTYPE html><html> <head> <meta charset="UTF-8"> <title>帖子详情</title> <sc

姚辉乾

3739人浏览 · 2018-11-08 17:12:43

姚辉乾 · 2018-11-08 17:12:43 发布

<!DOCTYPE html>
<html>
   <head>
       <meta charset="UTF-8">
       <title>帖子详情</title>
<script src="js/vue.min.js"></script>
<style>
   *{
margin: 0 auto;
       padding: 0;
   }
   .box{
       width: 100%;
       height: 100%;
       position: fixed;
       background: rgba(0,0,0,.2);

   }
   .abc{
       width: 500px;
       height: 500px;
       border:1px solid red;
       position: absolute;
   }
</style>

   </head>
   <body>
       <div class="box">
<div ref='wh' class="abc">
   yaohuiqian1
</div>
       </div>
       <script>

new Vue({
el: '.box',

       mounted(){
               let h = window.innerHeight || document.documentElement.clientHeight || document.body.clientHeight;
               let w = window.innerWidth || document.documentElement.clientWidth || document.body.clientWidth;
               let l = w/2-this.$refs.wh.offsetWidth/2;
               let t = h/2-this.$refs.wh.offsetHeight/2;
               this.$refs.wh.style.left=l+"px"
               this.$refs.wh.style.top=t+"px"
       }
           })

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

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