article {

display: block;
margin: 0 auto;
width: 80%;

@media screen and (min-width: #{ $max-width + 5 + 'em'}) {
  max-width: #{1.5 * $max-width * $base-desktop + 'px'};
  max-width: #{1.5 * $max-width + 'rem'};
}

}