* Make container in navbar to occupy full width even on smallest breakpoint
* Fix typo in comment
* Apply fix only on smaller breakpoint
* drop the comment as chrome doesn't have a bug here
* remove obvi comments
* proper fix for #21801
- ensures .progress-bar text is vertically centered should the height of the .progress-bar change by matching the line-height and height values
- we can't use flexbox here because the inner text of an element doesn't count as a flex item
* fix segmented buttons
changed flex-direction to row
centering is now done by align-items instead of justify-content
this way there is no need for flex property on the .btn inside .btn-group
* Update _input-group.scss
Tried redoing this in flexbox, but it falls apart really quickly. Any changes in height of the cells throws it all off since the rows become columns (and thus, content across columns cannot be equally sized). Rather than implement something with such glaring flaws, I'm nuking it outright.
- Renames .pos-f-t to .fixed-top, adds .fixed-bottom and .sticky-top
- Updates utilities Sass to be split across more files (one for position, sizing, and spacing)
- <progress> element didn't allow animation, labels overlaid, multiple bars, etc.
- Revamps CSS to use something more similar to v3's implementation
- Ditches variant mixin for `bg-` utils
- Rebuilds docs to match, including adding a new Height section for customizing that.
Only potential remaining todo is adding `.sr-only` instances to within the bar. Unsure if that's necessary.
- since we're column to start, need to set row.
- note that flex-direction cannot be inherited, so we have to set it twice.
- apply the horizontal padding again to .nav-link.
- remove the .nav-item styles (un-needed).
- remove previous .nav-link styles as they were un-nested and potentially problematic in old placement should someone mix more navs in here.
since we're no longer using the .nav as a base class, we need to bring over some base styles for redoing browser list styles and setting flex in motion.
also brings with it some .nav-link styling. we're still using this global class, but with this small modification for alignment of content in responsive modes.
