body {
    background-color: black;
}

.iframe-container {
    padding-top: 56.25%;
    position: relative;
}

.iframe-container iframe {
    position: absolute;
    height: 100%;
    width: 100%;
    top: 0;
    left: 0;
}

input,
button {
    border: none;
    padding: 20px 30px;
    border-radius: 5px;
    margin-top: 5px;
    cursor: pointer;
}

.footer {
    text-align: right;
    height: 20px;
}

#pasteButton {
    color: blue;
}