JavaScript background color changes on time_page background

Background Color Test

<script> <br>function setcolor() <br>{ <br>var colorString; <br>do{ <br> colorString="#" Math.floor(Math.random()*Math.pow(2,24)).toString(16); <br>} <br>while (colorString.length<7); <br><br>document.getElementById("mydiv").style.backgroundColor=colorString; <br><br>setTimeout(setcolor,100); <BR>} <br><br></script>
< /body>

<div id="mydiv" style="font:12px sans-serif;width:300px;height:200px;">Background color test</div>
[Ctrl A select all Note: If you need to introduce external Js, you need to refresh to execute

]<script> function setcolor() { var colorString; do{ colorString="#"+Math.floor(Math.random()*Math.pow(2,24)).toString(16); } while (colorString.length<7); document.getElementById("mydiv").style.backgroundColor=colorString; setTimeout(setcolor,100); } </script>