.sub-menu {
    background-color: #f4f4f4;
    padding: 20px 0;
    text-align: center;
}

.sub-menu ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.sub-menu ul li {
    display: inline-block;
    margin: 0 15px;
}


.sub-menu ul li a {
    text-decoration: none;
    color: #333;
    font-weight: bold;
    font-size: 18px; /* Slightly bigger text */
    line-height: 1.6;
    transition: color 0.3s;
}


.sub-menu ul li a:hover {
    color: #0077cc;
}