New line for discount price

-- url of the page with the problem -- : grammashop.com
-- HikaShop version -- : 3.2.1
-- Joomla version -- : 3.8.1

I want to make new line for discount price (in blue circle).
I try to add many css code but I can't made it.
Can you help me?

Sorry
This is original image

Sorry again
I make it online now.
This is product link grammashop.com/index.php/th/shop/hikasho...duct/lenovo-miix-720 .
I try to add this code but it almost work.
@media only all and (max-width: 450px) {
.hikashop_product_our_price_title {
display: block;
}
.hikashop_product_price .hikashop_product_price_0 {
display: block;
}

Hello,

Using some CSS code like this will probably do the job :

#hikashop_product_price_main .hikashop_product_price_full {
    display: block;
}