main {
    font-family:'Open Sans';
    font-size:1em;
}


main h1 {
    margin:0;
    font-size:2em;
}

main h2 {
    margin:0;
    font-size:1.6em;
}


main  p {
    font-size:1.2em;
    margin: 1em 0 0 0;
}

main li {
    font-size:1.2em;
}

@media only screen and (max-width: 1280px) {main{font-size:calc(0.80em + 0.2 * (100vw - 20em) / 60);}
@media only screen and (max-width: 320px) {main{font-size:0.75em}}