.menu {
    position: fixed;

    left: 0;
    top: 80px;
    height: calc(100% - 80px);
    width: 256px;

    background-color: white;
    box-shadow: 0 1px 3px rgba(0,0,0,0.12), 0 1px 2px rgba(0,0,0,0.24);
}

.menu h4 {
    padding: 10px;
}

.friend-item {
    padding: 5px 20px;
}