body{
    background: black;
    color: ivory;
}
h1{
    font-size:xxx-large;
    text-align:center;
}

h2{
    font-size: xx-large;
    text-align:center;
}

iframe{
    display:block;
    width: 1120px;
    height: 630px;  
    margin: 20px auto;
}