div.rb_1
{
    width:634px;
}
div.rb_1a
{
    float:left;
}
div.rb_1b
{
    float:right;
    width:34px;
    height:250px;
    background-color:#999999;
}
div.rb_1b1
{
    width:20px;
    height:22px;
    padding-top:8px;
    padding-left:7px;
}