.xxgg_bt1
{
    width: 30%;
    height: 28px;
    line-height: 28px;
    float: left;  
    cursor:pointer; 
}
.xxgg_bt2
{
    width: 30%;
    height: 28px;
    line-height: 28px;
    float: left; 
    cursor:pointer; 
}
.xxgg_bt3
{
    width: 20%;
    height: 28px;
    line-height: 28px;
    float: left;  
}