:go:func Error404(mainSite string) extends base.jade block append head style(type="text/css"). #error { font-size: 3.5rem; line-height: 5rem; text-align: center; margin: 6rem 0; } #error h1 { font-size: 8rem; } block append header h1 404 block append body section#error h1 404 | Nod Found xD