Hello,

1) Please try adding the following Custom CSS in the Global Custom CSS area under Theme Settings >> Custom CSS.

.wd-nav[class*=”wd-style-“]>li>a:hover {
color: white;
}

2) Please try adding the following Custom CSS in the Global Custom CSS area under Theme Settings >> Custom CSS.

.variations_form .woocommerce-variation-availability p.stock {
display: none;
}

3) This is not possible with simple Custom CSS. It requires customizations and this is beyond our limitations and support policy.

4) Please try adding the following Custom CSS in the Global Custom CSS area under Theme Settings >> Custom CSS.

.payment_methods .payment_box {
margin-top: 0;
padding: 0;
}

5) Please try adding the following Custom CSS in the Global Custom CSS area under Theme Settings >> Custom CSS.

li.woocommerce-MyAccount-navigation-link.woocommerce-MyAccount-navigation-link–ly_saved_cards {
display: none;
}

Best Regards