main {
    display: grid;
    grid-template-areas:
        "heading heading heading"
        "li yt yt"
        "li dd this"
        "poem poem flag"
        "poem poem person";
   

  
}

h1 {
    grid-area: heading;
    text-align: center;
    padding: 35px;
    border: 1px solid black;
    margin: 0;
}


ul {
    grid-area: li;
    margin: 0;
    border: 1px solid black;
    list-style-type: decimal;
}

iframe {
    grid-area: yt;
    border: 1px solid black;
    width: 710px;
    height: 250px;
    margin: 0;
}

#p {
    grid-area: dd;
    border: 1px solid black;
    width: 351px;
    height: 250px;
    margin: 0;
} 

img {
    grid-area: this;
    border: 1px solid black;
    width: 358px;
    height: 250px;
    margin: 0;
}

p {
    grid-area: poem;
    border: 1px solid black;
    text-align: center;
    font-size: 30px;
    width: 597px;
    height: 500px;
    margin: 0;
} 

#f {
    grid-area: flag;
    border: 1px solid black;
    width: 358px;
    height: 250px;
    margin: 0;
}

#bob {
    grid-area: person;
    border: 1px solid black;
    width: 358px;
    height: 250px;
    margin: 0;
}