By default, iOS safari will automatically zoom into focused inputs with
font-sizes less than 16px. To avoid this, we had a CSS rule to ensure
inputs always had a large font-size on iOS. This worked, but did lead to
design inconsistencies.
Instead, we can set `user-scalable=no` on the viewport meta tag. Since
iOS 10, this property doesn't actually stop users zooming. But it *does*
still prevent the automatic zooming of inputs. So it solves our zoom
problem, and allows us to remove the CSS font-size workaround.
This reverts commit d0d4a363d4801a274caad50ffa509fc64740f238. This causes issues for people that have specified explicit font sizes in their browser - reverting while we investigate. https://meta.discourse.org/t/300374
Previously we had an iOS-specific sizing rule which would increase inputs to `1.07em`, which would bring them over the 16px 'zoom on focus' threshold in some (but technically, not all) situations.
This commit does two things:
1. Updates the sizing rule from `1.07em` to `max(1em, 16px)`. Essentially: use the cascaded font size, unless it is smaller than 16px
2. Applies that sizing rule on all platforms. This will make Discourse design/theming more consistent across different devices
It also removes some associated CSS rules which no longer make sense.
Size of headings increased proportionally with their nesting because
their size was relative to the parent element (used em). This commit
makes headings from posts use rem instead which are relative to the
root HTML element.
<h1><div><h1>test</h1></div></h1> looks the same as <h1>test</h1> now.
Over the years we accrued many spelling mistakes in the code base.
This PR attempts to fix spelling mistakes and typos in all areas of the code that are extremely safe to change
- comments
- test descriptions
- other low risk areas
* DEV: refactor font sizing into css custom variables
Add font variables as css variables. Allows plugins/themes to update/overwrite the variables and have core pick up changes. This allows for a theme or plugin to overhaul core's font ratios if desired.
