I keep getting the following error message: "Oops, try again. Did you set the first paragraph's font-size to 10px? It looks like it's 11px. (If you're getting a weird decimal font size, check the Hint.)"
But as far as I can see I have set it to 10px (see screenshot below). Please can someone tell me where I am going wrong?
(NB: I have refreshed the browser, checked the minimum font sizes and made sure everything is showing at 100%.)