.single-product-wrapper.product_on_sales{
  position:relative;
  overflow:hidden;
}
.single-product-wrapper.product_on_sales:before{
  content:'SALE';
  position:absolute;
  width:100%;
  top:0px;
  left:0px;
  font-size:24px;
  z-index:5;
  text-align:center;
  background:#7acfd9;
  line-height: 2;
  color:#fff;
  font-weight:700;
  opacity:0.9;
  transform:rotate(45deg);
  transform-origin:50% 50%;
  left:auto;
  right:-80px;
  top:50px;
  width:300px;
  box-shadow:0px 0px 10px 0px rgba(0,0,0,0.5);
}
.single-product-wrapper.product_on_sales .woocommerce-Price-amount{
/*  font-weight:800;*/
}
.regular-price_at_disc{
  opacity: .6;
}

ul.variation-radios li.on_sale{
  margin-bottom:12px;
}
ul.variation-radios li.on_sale label{
  position:relative;
  background:#7acfd9;
}
ul.variation-radios li.on_sale label:before{
  content:'SALE';
  position:absolute;
  top:calc(100% + 7px);
  left:0px;
  color:#000;
  text-align:center;
  width:100%;
  line-height:1;
  font-size:11px;
  font-weight:600;
}

ul.variation-radios{
  display:flex;
  float:none;
  flex-wrap:wrap;
 gap:6px;
}
.size-redio-block ul li{
  float:none;
  margin:0;
}
@media(max-width:991px){
  .single-product-wrapper.product_on_sales:before{
    font-size:15px;
    right:-120px;
    top:20px;
  } 
  
}