body {
    background-color: black;
}
#menu-bar {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1000;
    background: #fff;
    padding: 5px;
    border-radius: 5px;
    /*
    box-shadow: 3px 3px 3px rgba(0,0,0,0.5);
    */
}
.active {
    background: #404040;
    color: white;
}
button {
    padding: 5px;
    margin: 0px 2px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}