<div style="width:10px; height:10px; overflow:hidden;"> | |
<div style="opacity:0.5;"> | |
<div style="position:absolute; z-index:0; width:100px; height:100px; border:1px dashed black; "> | |
<div style="position:relative; top:50px; left:50px; width:50px; height:50px; background:red;"></div> | |
</div> | |
</div> | |
</div> |