nav {
    background: #444;
    width: 100%;
}

nav ul {
    padding: 0;
    margin: 0;
    display: flex;
    gap: 2px;
}

nav ul li {
    position: relative;
    display: inline-block;
    list-style-type: none;
    margin: 0;
    padding: 6px 0;   /* was 10px 0 */
}

nav ul li:hover {
    background: #03ADDF;
}

nav ul li a {
    color: white;
    text-decoration: none;
    padding-left: 8px;
    padding-right: 8px;
}


/* Dropdown default state */
nav ul li ul.child {
    display: none;          /* hide by default */
    position: absolute;
    top: 100%;
    left: 0;
    background: white;
    padding: 0;
    margin: 0;
    list-style: none;
    min-width: 250px;
}

/* Show dropdown on hover */
nav ul li:hover > ul.child {
    display: block;
}

/* Child items */
nav ul li ul.child li {
    display: block;
    padding: 8px 12px;
    white-space: nowrap;
}

/* Submenu override */
nav ul li.parent ul.child {
    display: none;
}

nav ul li.parent:hover ul.child {
    display: block;
    position: absolute;
    top: 40px;
    background: #008B8B;
}

nav ul li.parent ul.child li {
    width: 9em;
    padding: 0;
}

nav ul li.parent ul.child li:hover {
    background: #008B8B;
}

nav ul li.parent ul.child li a {
    display: block;
}