Page sinking jitter effect - website HTTP connection has no effect - has effect on PC_javascript skills

Step 1: Add the following code to the area Step 2: Change the content in to:
[Ctrl A select all Note: If you need to introduce external Js, you need to refresh to execute

]<script> if(document.layers) { alert("将窗口缩小一些，才可以看到效果！"); } function drop(n) { if(self.moveBy){ self.moveBy (0,-900); for(i = n; i > 0; i--){ self.moveBy(0,3); } for(j = 8; j > 0; j--){ self.moveBy(0,j); self.moveBy(j,0); self.moveBy(0,-j); self.moveBy(-j,0); } } } </script>