.buy-btn{

  background-color: #1856b4;
  padding: 10px;
  border-radius: 5px;
  color: #fff;
  margin-top: 20px;
  display: block;
  width: 200px;
  text-align: center;
  color:#fff !important;

}

#super-product-table div article img{

    width:50%;
}


.product-add-form ._associate-products.grid-1 ._associate-options {
  float: left;
  margin-top: 45px;
  width: 248px;
  background: none;
}

@media screen and (max-width: 780px){

    .buy-btn{
        margin:0 auto;
        margin-top:20px;
        margin-bottom:20px;
        display: block;
    }
   
}