body {
    margin: 0;
}

ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
    width: 13%;
    background-color: #f1f1f1;
    position: fixed;
    height: 100%;
    overflow: auto;
    font-size: 10px;
}

li a {
    display: block;
    color: #000;
    padding: 8px 16px;
    text-decoration: none;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

li a.active {
    background-color: #116adf;
    color: white;
}

li a:hover:not(.active) {
    background-color: #555;
    color: white;
}

.title {
    margin: 13.4px;
    font-size: 16px;
    color: green;
}

iframe {
    margin-left: 13%;
    position: fixed;
    height: 100%;
    width: 86.8%;
}