console 命令行工具 X clear

console

<!DOCTYPE html> 
<html>
<head>
    <meta charset="utf-8" />
    <title></title>

</head>
<body>
    <div></div>
</body>
    <script>
      var div=document.querySelector('div');
      var time=setInterval(function(){
          if(div.offsetLeft>400){
              clearInterval(time);
              div.style.display='none';
          }
          div.style.left=div.offsetLeft+10+'px';
      },30);
    </script>
</html>

div{
    height: 100px;
    width: 100px;
    background-color: pink;
    left: 0;
    position: absolute;
    display: block;
}