.single-product div.product .product_title {
    background-color: #f8f9fa;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    padding: 15px 20px;
    margin-bottom: 20px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
    display: inline-block;
    width: 100%;
    box-sizing: border-box;
}