electro custom layout change for cart page

style.css

.woocommerce-cart .entry-content > .woocommerce {
    display: flex;
    flex-wrap: wrap;
    margin-right: -15px;
    margin-left: -15px;
}

.woocommerce-cart .entry-content > .woocommerce .woocommerce-cart-form,
.woocommerce-cart .entry-content > .woocommerce .woocommerce-notices-wrapper,
.woocommerce-cart .entry-content > .woocommerce .cart-collaterals {
    position: relative;
    width: 100%;
    min-height: 1px;
    padding-right: 15px;
    padding-left: 15px;
}

.woocommerce-cart .entry-content > .woocommerce .woocommerce-notices-wrapper {
    flex: 0 0 100%;
    max-width: 100%;
}

.woocommerce-cart .entry-content > .woocommerce .woocommerce-cart-form {
    flex: 0 0 70%;
    max-width: 70%;
}

.woocommerce-cart .entry-content > .woocommerce .cart-collaterals {
    flex: 0 0 30%;
    max-width: 30%;
    padding-top: 0;
}

body:not(.electro-v1) .cart-collaterals {
      margin: 0;
}

@media (min-width: 768px) {
    body:not(.electro-v1) .cart-collaterals .cross-sells+.cart_totals {
        margin: 0;
    }
    
    body:not(.electro-v1) .cart-collaterals .cart_totals,
    body:not(.electro-v1) .cart-collaterals .cross-sells+.cart_totals,
    body:not(.electro-v1) .cart-collaterals .cross-sells {
        flex: 0 0 100%;
        max-width: 100%;
    }
    
    body:not(.electro-v1) .cart-collaterals .cross-sells {
        order: 2;
        display: none;
    }
}