add styling for error pages
add styling for error pages

benoror/hn-special,benoror/hn-special,kislakiruben/hn-special,lieuwex/hn-special,lieuwex/hn-special,kislakiruben/hn-special,kislakiruben/hn-special,benoror/hn-special,gabrielecirulli/hn-special,gabrielecirulli/hn-special,gabrielecirulli/hn-special,lieuwex/hn-special