Font size issues
It could be either of the two:If your error is: Did you give your paragraph a font-size of 26px [or any other size]? It looks like it's currently 16px.
then your issue will be your browser’s zoom. Make sure you’re not accidentally zoomed in/out? Use ctrl+0 (PC) or cmd+0 (Mac) to reset.
If your error is: it looks like your code is 12px instead of 10px
then the issue is your browser’s minimum font size - click here to find out how change that.