* Get this party started by removing mention of Normalize.css
* Nuke the old comment, consolidate to a single line and number as appropriate
* Bring over styles for HTML element from Normalize to Reboot
* Move margin override for body element from Normalize to Reboot
* Drop the block reset for HTML5 elements in IE9- from Normalize given we dropped IE9 support
* Building on previous commit, do the same thing for figure, figcaption, and main
* Remove IE9- display from Normalize given our browser support
* Drop IE8 figure margin because we're IE10+
* No need for the h1 overrides because we reset these font and margin styles anyway in _type.scss already
* Drop Safari 6 b and strong normalization because we're Safari 8+
* Remove mark styles for IE9- from Normalize
* Remove old iOS audio fixes from Normalize
* Remove IE9- display for progress from Normalize
* Remove more IE9- rules from Normalize
* One more IE9- display removal for canvas element
* Move pre overrides from Normalize to Reboot
* Move over some link resets to Reboot, drop others
- Move over background-color and text-decoration
- Drop focus outline change given it affects the offset on hover of
focused links
* Move over more code element resets, consolidate with pre overrides, too
* Move over sub and sup wholesale
* Move over img normalization to Reboot
* Move over SVG override too
* - Drop dupe hidden, but add comment for it
- Move over template
- Move over summary
* Remove bulk of @viewport comment
* edit down that code comment
* consolidate html-based normalizations
* update comments
* Consolidate abbr styles
* move over more type elements
* move over hr changes
* move over form controls and more
* move over button resets
* move over firefox button changes
* move over search changes and more
* we nuke all these styles for fieldsets anyway, so outright remove them
* no need for those, we override them
* move over legend, fieldset, progress
* line break
* delete normalize file
* linting
* update comment
* clarify docs mentions of normalize and reboot
* remove normalize excludes from linter
* remove normalize excludes from cli task
* linting
* callout license since we forked part of normalize
* Improve comments, move table background reset to .table class instead of in reboot
* trailing space
* 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
On small screens (< 576px), all documentation pages containing
`.bd-example` styled tags, show the horizontal scrollbar because of a
wrong horizontal margin property.
This PR sets the horizontal margin on gutter width basis instead of rem.
Double up :hover styles to also apply on :focus (particularly the
masthead button needs this, as otherwise it gives no visible indication
of being focused)
