2 <div style=
"width:400px;">
3 <span style=
"opacity:0.5;">
4 <span style=
"position:relative; display:inline-block; background:red; width:400px; height:200px;"></span>
5 <span style=
"position:relative; top:-300px; display:inline-block; background:lime; width:400px; height:400px;"></span>