.wc-proceed-to-checkout .button.checkout-button,
.woocommerce-page .cart .wc-proceed-to-checkout a.checkout-button,
a.checkout-button {
    background-color: #14A8E3 !important;
    color: #fff !important;
    border: none !important;
    padding: 12px 25px !important;
    border-radius: 5px !important;
    font-weight: bold !important;
    display: inline-block;
    text-align: center;
}

.wc-proceed-to-checkout .button.checkout-button:hover,
.woocommerce-page .cart .wc-proceed-to-checkout a.checkout-button:hover,
a.checkout-button:hover {
    background-color: #0F90C2 !important;
    color: #fff !important;
}