.form_prod_main {
border-bottom:solid 1px #999999;
float:left;
display:block;
height:42px;
padding:5px;
width:550px;
margin-bottom:5px;
}

.form_prod_prod {
display:block;
width:270px;
height:35px;
float:left;
}

.form_prod_option {
display:block;
float:left;
width:270px;
}

.form_prod_option_title {
width:100px;
display:block;
float:left;
}

.form_prod_option_check {
display:block;
width:30px;
float:left;
}