This is a backport from BS5 to BS4.
As per https://github.com/twbs/bootstrap/issues/35553
The ```small-font -size``` will actually increase from ```13px``` to ```14px``` with this proposed change. Personally I'd prefer keeping it the BS5 way (```14px```), as the text is more readable now.
If it's needed, I can do another PR with the ```$small-font-size: .8125rem !default;``` to resemble BS4 more closely but I feel like this would be a move forward even for BS4.
* Backport #32037
Add `.navbar-nav-scroll` for vertical scrolling of navbar content
* drop the css var for a Sass css
Co-authored-by: Mark Otto <markdotto@gmail.com>
On Ubuntu, our native font-stack doesn't output the same font on Firefox and Chrome. This is [a known aliasing issue](http://fontfamily.io/sans-serif) — check at the bottom, Ubuntu 14.04. Ubuntu 18.04 (my current) doesn't use the same (Firefox uses Liberation Sans, Chrome uses the default system font Ubuntu).
I'm inclined to prefer Liberation Sans since it's closer to Arial / Helvetica. This patch already exists in Boosted, didn't notice it was missing in bootstrap until today…
BTW, our linked Smashing Magazine's system fonts post mentions this and is even more accurate since it targets the three major Linux distributions. AFAIK this is not needed since [Liberation Sans is available everywhere](http://fontfamily.io/Liberation_Sans) — but we might go back to `Oxygen, Ubuntu, Cantarell`if we want to stick to system fonts.
Co-authored-by: XhmikosR <xhmikosr@gmail.com>
- Adds .user-select-* utils from v5
- Adds button role attribute util, one of the top requested features in our issues for adding pointer cursors
- Adds new docs page to demonstrate both
- Includes Sass list for customizing user select
- Rename and move the variable to variables file
- Move code to the grid file
- Use the mixin to generate our own classes
- Wrap in a grid classes enabled conditional
- Document the mixin
