.sidenav {
    height: 100%;
    width: 160px;
    position: fixed;
    z-index: 1;
    top: 0;
    left: 0;
    background-color: #111;
    overflow-x: hidden;
    padding-top: 20px;
}

.sidenav a {
    padding: 6px 8px 6px 16px;
    text-decoration: none;
    font-size: 25px;
    color: #818181;
    display: block;
        }

.sidenav a:hover{
    color: #f1f1f1;
}

.main {
    margin-left: 160px;
    padding: 0px 10px;
}

.float_save {
  width: 50px;
  height: 50px;
  position: absolute;
  left: 420px;
  top: -25px;
  z-index: 100;
}