ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
    width: 300px;
    background-color: #f1f1f1;
    height: 100%; /* Full height */
    position: fixed; /* Make it stick, even on scroll */
    overflow: auto; /* Enable scrolling if the sidenav has too much content */

}

li a {
    display: block;
    color: #000;
    padding: 8px 16px;
    text-decoration: none;
}

/* Change the link color on hover */
li a:hover {
    background-color: #555;
    color: white;
}
.active {
    background-color: #4CAF50;
    color: white;
}
@media print
{
    .noprint {display:none;}
}
@keyframes blink { 
   50% { border-color: #ff0000; } 
}