* {
    box-sizing: border-box;
}
body {
    margin: 0;
    padding: 0;
}
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    height: 100%;
    background-color: #252c41;
}
.sidebar a {
    display: block;
    color: #9ea6ba;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: 15px 20px;
    text-decoration: none;
}
.sidebar ul {
    list-style: none;
    margin: 0;
    padding: 0;

/*    position: absolute;
    left: 0;
    width: 100%;*/
}
.nav-back-button a {
    color: #fc6363;
    font-size: 11px;
}
.nav-back-button a i {
    font-size: 14px;
}
.nav-arrow {
    float: right;
    font-size: 14px;
}
.nav-arrow:after {
    content: '>';
}