mirror of
https://git.sr.ht/~seirdy/seirdy.one
synced 2024-12-25 18:22:09 +00:00
22 lines
1.4 KiB
Markdown
22 lines
1.4 KiB
Markdown
|
---
|
||
|
title: "Overriding default font size"
|
||
|
date: 2022-10-27T11:18:25-07:00
|
||
|
replyURI: "https://mastodon.social/@mathew/109236592585774225"
|
||
|
replyTitle: "why override the user's choice of base font size?"
|
||
|
replyType: "SocialMediaPosting"
|
||
|
replyAuthor: "mathew"
|
||
|
replyAuthorURI: "https://meta.ath0.com/"
|
||
|
---
|
||
|
Three reasons to declare a font size in a page's CSS:
|
||
|
|
||
|
1. Not all browsers support all types of zoom (standard, pinch-to-zoom, and text-only zoom). Some mobile browsers still don't support _any_ type of zoom.
|
||
|
|
||
|
2. Different use-cases call for different sizes. Long-form text should be bigger than text in user-interface controls.
|
||
|
|
||
|
3. WCAG guidelines recommend sizing tap-targets to at least 44-by-44 CSS pixels, with the exception of inline links. Google recommends 48-by-48 CSS pixels, with no overlap across a 56-by-56 pixel range. Increasing my root font size makes non-inline links and buttons bigger.
|
||
|
|
||
|
Combining the first and second points, we see that the base font size on the Web is not a "one-size-fits-all" solution. It's now a reference point for relative font sizes (e.g. `em`, `rem`, percents). Relative font sizes scale with the base font instead of "overriding" it.
|
||
|
|
||
|
My browser's default size is perfect for a typical Fediverse microblog or information-dense discussion-forum, not for reading an article. My website's stylesheet defines a font that is 9.375% larger than default, whatever that may be.
|
||
|
|