.sidebar {
       position: fixed;  /* Fixed Sidebar (stay in place on scroll) */
       height: 100%;
            /* Set the width of the sidebar to 0 (hidden by default) and open on click */
   }
.sidebar-menu ul {
    list-style-type: none;  /* Remove bullets */
    padding: 0;              /* No padding */
    margin: 0;               /* No margins */
}
.sidebar-menu li a {
    display: block;         /* Make the links inside the sidebar look like regular buttons */
    text-decoration: none;  /* Remove default underline */
}