#mDummy {display:none;-webkit-box-sizing: border-box; -moz-box-sizing: border-box; box-sizing: border-box;}
#leftList {padding:0; min-height:100px;-webkit-box-sizing: border-box; -moz-box-sizing: border-box; box-sizing: border-box;}
#leftList * {-webkit-box-sizing: border-box; -moz-box-sizing: border-box; box-sizing: border-box;}
#leftList.relative {position:relative;}
#leftList.fixed {position:fixed;}

@media (max-width:650px) {
#leftList.fixed {position:inherit;}
#leftList.relative {position:inherit;}
}