body{
	font-family: 微软雅黑;
}
#a
{
    position:absolute;left:300px;width:387px;height:45px;border:1px solid #E4E4E4;z-index:999;
    
    }
#btn
{
    float: right;
    width: 88px;
    height: 45px;
    position: absolute;
    top: 0px;
    text-align: center;
    line-height: 45px;
    cursor: pointer;
    left: 686px;
    border: 1px solid #E4E4E4;
    z-index:999;
    }
    .gnlg
    {
    position: absolute;
    top: 105px;
    z-index: 31;
    display: block;
        }
#best
{
    position:absolute;
    top:150px;
    }