.navbar {
    margin-bottom: 0px;
    border: 0px;
}

.ilist {
    list-style-type: none;
    width: 100%;
    margin: 0;
    padding: 0;
    overflow-x: scroll;
    overflow-y: hidden;
    #background-color: #333;
    background-color: #838383;
    white-space: nowrap;
    display: inline-flex;
    max-height: 90px;
}

.list_item {
    display: inline-block;
    margin: 0;
}

.instrument {
    padding: 20px 10px;
}

.instrument a, .course a {
    color: white;
    text-align: center;
    text-decoration: none;
}

.active {
    #background-color:#4CAF50;
}

.navimg {
    max-height: 50px;
    margin: 0px auto;
    #min-width: 60px;
}

.course {
    width: 33%;
    padding: 20px 15px;
    white-space: initial;
    text-align: center;
}

.selected {
    background-color: #555555; 
}