Fixup for 365db6e3
/fyi @mdo
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Refs #19102
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Fixup for #19105
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- Switch from width to max-width for all widths to avoid scaling outside viewport bounds
- Rejigger the media queries for a more logical breakpoint for the large and small modal sizes
- Avoids changing the width of the default modal (nullifying #17794 and fixing #17581)

- Make it an explicit class instead of qualifying with elements (.list-group-item-action)
- Rearrange the entire file for more straightforward flow
- Fix text-decoration bug as a result of the reorder
- Switch from h4's to h5's in docs
- Update docs to merge anchors and buttons sections; clearify usage guidelines there, too
- Nullify #17479 in the process

- Both classes do about the same thing, but with different names
- Clarifies docs for .m-x-auto requiring a fixed width block element for it to work
- Add missing heading for clearfix section in docs (unrelated)

Dump the type margin overrides in alerts for utils, document that particular example, sidesteps part of #18884

Closes #19049

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see https://github.com/twbs/bootstrap/pull/18782

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Put all the textual input types right next to each other for easy visual comparison.
Refs #17308, #18763

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- More consistent states and labels in nav examples
- Add stacked pills example for with <nav> element

Refs #18708
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It has been removed from the HTML specification: https://github.com/whatwg/html/issues/336
Only Presto Opera ever implemented a special UI for it.

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/fyi @mdo

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- add more details on custom checkboxes and radios for how we handle the states and how the css works
- create a disabled custom checkboxes and radios example

As per our browser compat policy, we only claim support for latest
versions of Opera on desktop. Current Opera is version 34. From testing, IE11 does support `pointer-events:none` just fine now.

to harmonise it with the callout given in pagination

"Go somewhere" is more descriptive of an example link, rather than a
button that triggers in-page functionality. Also makes it consistent
with all other examples in this page

...as per the text immediately preceding this example