.product_form{
  margin: 0 0 62px;
}

.product_images div img{
max-width: 300px;
    margin: 0 auto;
}
.product_description img{max-width:100%;}

@media(max-width:767px){
 .product_description img{
   width: 100%;
   height: auto;
 }
}

.option_box{
  clear: both;
  overflow: hidden;
  padding: 20px 0;
  margin-bottom: 15px;
  border-bottom: solid 1px #ccc;
}
#option_tbl{
  font-size: 14px;
}
#option_tbl td,
#option_tbl th{
  padding: 0.35em;
}