We will add the CSS for the delete icon.

add_quantity.css

#content table.shop_table a.remove {
  color: red;
  display: block;
  font-size: 20px;
  font-weight: 700;
  height: 20px;
  line-height: 20px;
  padding: 0;
  text-align: center;
  text-decoration: none;
  vertical-align: middle;
  width: 20px;
  float: left;
  border: 0;
}
.product_name{
  float:left;
}