IE9的css hack
select {background-color:red\0 ;
background-color:blue\9\0; /* ie 9*/
*background-color:#dddd00; /* ie 7*/
_background-color:#CDCDCD; /* ie 6*/
select {background-color:red\0 ;
background-color:blue\9\0; /* ie 9*/
*background-color:#dddd00; /* ie 7*/
_background-color:#CDCDCD; /* ie 6*/