ol {
    list-style-type: none;
    margin: 0;
    padding: 0;
    width: 490px;
    background-color: #000;
    border-radius:20px;
    color:#fff;
    border: 0px solid #555;
}

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

li {
    text-align: left;
    border-bottom: 3px solid #e9dcc9;
}

li:last-child {
    border-bottom: none;
}

li a.active {
    background-color: #4CAF50;
    border-radius:20px;
    color: white;
}

li a:hover:not(.active) {
    background-color: #555;
    border-top-right-radius: 0px;
    border-top-left-radius: 0px;
    color: white;
}