jy
/
flask-map


			
				
					
						
						
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							<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <style>
        div {
            width: 10px;
            height: 10px;
            background: blue;
            position: absolute;
        }
    </style>
</head>

<body>
    <div></div>
    <div></div>
    <div></div>
    <div></div>
    <div></div>
    <div></div>
    <div></div>
    <div></div>
</body>
<script>
    var aDiv=document.getElementsByTagName('div');
    document.onmousemove=function(ev){
        var oEvent=ev||event;
        for(var i=aDiv.length-1;i>0;i--){
            aDiv[i].style.left=aDiv[i-1].style.left;
            aDiv[i].style.top=aDiv[i-1].style.top;
        }
        aDiv[0].style.left=oEvent.clientX+'px';
        aDiv[0].style.top=oEvent.clientY+'px';
    }
</script>
</html>