::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #181818;
}

::-webkit-scrollbar-thumb {
    background: #bebebe;
}

::-webkit-scrollbar-thumb:hover {
    background: #606060;
}

.sidenav {
    height: 100%;
    /* Full-height: remove this if you want "auto" height */
    width: 20%;
    /* Set the width of the sidebar */
    position: fixed;
    /* Fixed Sidebar (stay in place on scroll) */
    z-index: 1;
    /* Stay on top */
    top: 0;
    /* Stay at the top */
    left: 0;
    background-color: #202020;
    /* Black */
    overflow-x: hidden;
    /* Disable horizontal scroll */
    padding-top: 20px;
}

.sidenav a {
    padding: 6px 8px 6px 16px;
    text-decoration: none;
    font-size: 25px;
    color: #bebebe;
    display: block;
}

.sidenav a:hover {
    color: #f1f1f1;
}

.main {
    margin-left: 20%;
    /* Same as the width of the sidebar */
    padding: 0px 10px;
}

@media screen and (max-height: 450px) {
    .sidenav {
        padding-top: 15px;
    }
    .sidenav a {
        font-size: 18px;
    }
}

.content {
    background-color: #202020;
    position: absolute;
    width: 40%;
    height: auto;
    left: 50%;
    border: 15px;
    border-color: #202020;
    padding: 50px;
    margin: 20px;
    transform: translate(-30%, 0);
    top: 5%;
}

.search input[type=text] {
    float: center;
    padding: 6px;
    margin-top: 8px;
    font-size: 17px;
    border: none;
}

.search button {
    float: center;
    padding: 6px 10px;
    margin-top: 8px;
    margin-right: 16px;
    background: #ddd;
    font-size: 17px;
    border: none;
    cursor: pointer;
}

.search button:hover {
    background: #ccc;
}

#pongFrame {
    left: 0;
    top: 0;
    z-index: 10;
    zoom: 0.25;
    width: 400%;
    height: 400%;
    -webkit-transform: scale(0.25);
    -webkit-transform-origin: 0 0;
    border: none;
    overflow: hidden;
}

#gamediv {
    position: absolute;
    left: 37%;
    top: 20px;
    height: 750px;
    width: 750px;
    z-index: 10;
    overflow: hidden;
}

.op {
    position: absolute;
    bottom:0;
    background: #606060;
    font-size: 17px;
    border: none;
    cursor: pointer;
    width: 40px;
    height: 40px;
    color:black;
    text-decoration: none;
  }
  
  .op:hover {
    background: #bebebe;
  }