html {
    overflow: auto;
}
html, body, div, iframe {
    margin: 0;
    padding: 0;
    height: 100%;
    border: none;
}
iframe {
    display: block;
    width: 100%;
    border: none;
    overflow-y: auto;
    overflow-x: hidden;
    background-color: black;
}
form {
    display: none;
}