main {
    width: 95%;
    max-width: none;
}

#helpful {
    text-align: center;
}


main h2 {
    padding-left: .5em;
    padding-bottom: .25em;
}
main img {
    height: 10em;
    padding: .1em;
}
main iframe {
    height: 18em;
    width: 32em;
}