unable to edit CSS for items in cart

[Harshnandwana]

my store looks like the image attached and i want to make changes to make it look more eat and clean, i made the changes but im unable to save it below given is the code 

.cart-item__price-wrapper
.cart-item__discounted-prices
.cart-item__old-price.price--end {
display: none;
}

.cart-item__final-price {
display: none;
}

.price--end {
font-size: 16px;
position: relative;
visibility: visible;
text-indent: -40px;
padding-left: 15px;
}

[AnneLuo]

Hello, @Harshnandwana 

Why can't you save? Is there any error message?