.sidebar {
  height: 600px;
  width: 400px;
  background-color: #f2f2f2;
  z-index: 1;
  overflow: auto;
  float: right !important;
  display: inline;
  box-shadow: 10px 10px 5px grey;
}

#sidebar-1 {
  width: 20px;
  height: 100%;
  float: right;
  background-color: #cccccc;
}