div.summary.entry-summary > div.woocommerce-product-details__short-description{
    padding-top: 20px;
    padding-right: 20px;
    padding-bottom: 20px;
    padding-left: 20px;
    border-top-right-radius: 6px;
    border-top-left-radius: 6px;
    border-bottom-right-radius: 6px;
    border-bottom-left-radius: 6px;
    background-color: #f5f5f5;
    margin-bottom: 20px;
}
div.summary.entry-summary > div.woocommerce-product-details__short-description p{
    margin-bottom: 0;
}