Fix rendering of header font

[Twigonometry]

Has roboto been added as the header font? Stands out as the header on Mac's computer but not on Chloe's

[TheLostLambda]

Which headers are we talking about? The whole page <header>? Or every <h1> tag?

[Twigonometry]

Clarifying above (very late to party, cleaning up issues) - the <h1> tag on the index page is what's broken

[Twigonometry]

And the <h1> in the <header>, incidentally