body{
    width: 100vw;
    height: 100vh;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
}
iframe{
    width: 50vw;
    height: 100vh;
    margin: 0;
    padding: 0;
    border: none;
    outline: none;
    display: flex;
    justify-content: center;
    align-items: center;
}