.combonav {
    padding: 5px;
    margin: 10px 0;
    border: 1px solid #ccc;
    border-radius: 3px;
    background-color: #fff;
    font-size: 1em;
    min-width: 200px;
}

.combonav:hover {
    border-color: #999;
}

.combonav:focus {
    outline: none;
    border-color: #666;
    box-shadow: 0 0 3px rgba(0,0,0,0.2);
}