2 <div style=
"position:absolute; height: 200px; width: 200px; background: lightgray"></div>
3 <div style=
"position:absolute; height: 200px; width: 200px; top: 50px; left: 50px; background:lightblue"></div>
4 <div id=
"target" style=
"position:absolute; height: 200px; width: 200px; top: 50px; left: 50px; background:lightblue"></div>