.vertical-menu {
    width: 100%;
}

.vertical-menu a {
    background-color: #FFA500;
    color: black;
    display: block;
    padding: 5px;
    text-decoration: none;
    border: 1px solid #FFFFFF;
    text-align: center;
    font-size: 18px;
}

.vertical-menu a:hover {
    background-color: #FFD280;
}

.vertical-menu a.active {
    background-color: #4CAF50;
    color: white;
}


.bt1{font-size:18px; font-family:Arial, Helvetica, sans-serif; padding:6px; margin:3px;}
.bt2{font-size:18px; font-family:Arial, Helvetica, sans-serif; padding:6px; margin:3px;background-color: #FFA500;}