.topnav {
    overflow: hidden;
    background-color: #0583d6;
    position: relative;
    width: 100%;
}

.topnav #myLinks {
    display: none;
}

.topnav a {
    float: left;
    color: white;
    padding: 14px 16px;
    text-decoration: none;
    font-size: 15px;
}

.topnav a.icon {
    float: right;
}

.topnav a:hover {
    background-color: #ddd;
    color: black;
}

.active {
    background-color: #0583d6;
    color: white;
}

.backbtn {
    float: left;
}