* Drop .opacity-50 and .opacity-75 redefinition in examples
* Drop unused .card-img-right from blog example CSS files
* Use line-height utilities when possible
* Use rounded-* utilities in examples
* Replace .nav-underline by .nav-scroller and use it in examples.html default
* Use .mb-1 for .blog-post-title
* Remove unused CSS rule and use .fw-* utilities for carousels examples
* Use utilities for cheatsheet examples
* Extract some CSS to utilities for .nav-masthead .nav-link in cover example
* Dashboard group of minor modifications
* Dropdowns example: refactoring
* Dropdowns example refactoring: fix linting by removing selector by id
* Features example refactoring
* Headers example refactoring
* List groups example refactoring
* Sidebars example refactoring
* Sign-in example refactoring
* Starter template refactoring
* Fix RTL examples
Co-authored-by: Mark Otto <markd.otto@gmail.com>
* Disabled link cleanup
per https://www.w3.org/TR/html-aria/#docconformance
> It is NOT RECOMMENDED to use `aria-disabled="true"` on an `a` element with an `href` attribute.
>
>NOTE
>If a link needs to be "disabled", remove the `href` attribute.
This PR removes the unnecessary `href="#"`, `tabindex="-1"`, and `aria-disabled="true"` from disabled links in both docs pages and examples. `aria-disabled="true"` *is* kept for disabled link-based buttons (that have `role="button"`) as there it's appropriate to use (you *want* to convey to assistive technologies that this thing you're claiming is a button is also disabled at the moment)
Further, the PR extends the "Link functionality caveat" to show the "proper" way (removing `href` and adding `.disabled` class only) to disable a link, but then explains what to do if that's not possible (and then keeps an example with all the traditional `href="#" tabindex="-1" aria-disabled="true"`, but explains clearly that it's not ideal). Same sort of explanation is also added to the pointer event utilities page
* Turn big note into actual normal doc text
Co-authored-by: Mark Otto <markd.otto@gmail.com>
Co-authored-by: Mark Otto <markd.otto@gmail.com>
Co-authored-by: XhmikosR <xhmikosr@gmail.com>
