@media only screen and (max-width: 600px){
    .var-name-v4 {
        font-size: 16px !important;
    }
}
@media only screen and (max-width: 430px) {
    .variant-pricing-v4 span.variant-price {
        font-size: 16px !important;
        line-height: 18px;
    }
}