#obj300 { z-index:2; width:305px; left:135px; height: 306px; top: 4px;  background-color:#dddddd;  } 
#obj299 { z-index:1; width:119px; left:112px; height: 120px; top: 323px;  background-color:#dddddd;  } 
#obj301 { z-index:3; width:119px; left:335px; height: 120px; top: 324px;  background-color:#dddddd;  } 
#obj302 { z-index:4; width:119px; left:230px; height: 120px; top: 324px;  background-color:#dddddd;  } 
#obj1 { _height:453px; min-height:453px; }