body {
    font-family: Arial, Helvetica, sans-serif;
    overflow-x: hidden;
    margin: 0px;
    padding: 0px;
}

.content {
    margin-left: 100px;
    margin-right: 100px;
}

.topBar {
    position: fixed;
    top: 0px;
    width: 100%;
    background-color: black;
    color: white;
    height: 60px;
    vertical-align: center;
}

.topBar ul {
    margin-left: 49px;
    list-style: none;
    height: 100%;
    margin-top: 0;
}

.topBar ul li a {
    width: 100%;
    height: 100%;
    color: inherit;
    text-decoration: none;
    display: inline-block;
}

.topBar ul li:hover {
    background-color: mediumaquamarine;
    color: black;
    cursor: pointer;
}

.topBar ul li {
    margin-top: 0px;
    display: inline-block;
    height: 100%;
    width: 70px;
    position: relative;
    top: 0;
    line-height: 60px;
    text-align: center;
}

.content {
    margin-top: 70px;
}