Fonts on landing page not displaying properly on other devices


I fear that this might be a really dumb question, but I created a landing page from an Unbounce template that looks great with the default sans-serif font, but when viewed on other devices, the font seems to default to an ugly serif font. Do I need to embed the font somehow or choose a different one?



A little more info… this appears to be a problem with the PT Sans font specifically.