Reply To: Price amount size

I solved the add to cart size with:

.btns-shop-light .single_add_to_cart_button{
width:100%;
}

In the price amount sizes I’m using:

.product-template-default .price .amount {
    font-size: 35px;
}
.archive .price .amount{
   font-size: 30px;
}

Both prices are with same font size in product page.

My other question is related to add an image carousel in the product description. When I add a carousel the size is always full even when I change it to thumbnail or medium.