style.css

body {
    height: 100%;
    width: 98%;
    background-color: #c5e5e3;
}

main {
    height: 100%;
    margin: 22px auto 0;
    width:100%;
    padding: 10px;
}

nav {
    width: 100%;
    height: 22px;
    padding: 0;
    position: fixed;
    top: 0;
    left: 0;
    background-color: rgba(109, 163, 159, 1);
}

nav ul{
    font size: 0;
    list-style-type: none;
    height: 22px;
    padding: 0;
    margin: 0;
}

nav ul li {
    display: inline-block;
    text-align: center;
    position: relative;
    bottom: 2px;
    cursor: pointer;
}

nav ul li ul {
    display: none;
}

nav ul li:hover {
    background-color: #66c9c2;
}

nav ul li:hover ul {
    display: block;
    position: absolute;
    left: 0;
    padding: 0;
}

nav ul li:hover ul li {
    background-color: #60c1ba;
}

nav ul li:hover ul li:hover {
    background-color: #56afa9;
}

a {
    text-decoration: none;
    display: block;
    color: #000000;
    width: 150px;
    height: 22px;
    text-align: center;
}

.title {
    display: inline-block;
    font-size: 1.17em;
    font-weight: bold;
    width: 170px;
    height: 22px;
    margin-left: 15px;
}

.generic {
    display: unset;
}