Adjust heading tags (h1, h2, h3, h4, h5, h6) to use margins instead of
padding so that margins collapse together. Adjust margin sizes to reduce
gaps between headers and paragraphs, and headers and subheaders.
Also adjust paragraph margins so that there's slightly less space
between paragraphs.
Switch the font to 11px bold Arial. This is more compact and more
readable than 9px Tahoma. Also add a slight border radius and margins
around the indicator to make it stand out from the edge of the image.
Fix various elements to use standard font sizes instead of ad-hoc sizes.
Noticeable changes:
* Tags in autocomplete are slightly smaller.
* The favorite heart icon on posts is slightly smaller.
* Pool titles on thumbnails in the pool gallery page are slightly bigger.
* The page footer is slightly smaller.
* Timestamps on comments and forum posts are very slightly smaller.
* "Pending"/"approved"/"rejected" labels on forum posts are very slightly smaller.
Use rem units for font sizes so that font sizes are relative to the root
<html> element, not the parent element.
Fixes an issue where the video duration indicator would be too small on
parent/child thumbnails in post show pages. This was because of nesting
issues with em units. Em units are relative to their parent element, so
if you had a parent element with a font size of 0.8em, and a child
element with a font size of 0.8em, then the final computed font size
would be 0.8*0.8 = 0.64em.
Show the length of videos and animated posts in the thumbnail. The
length is shown the top left corner in MM:SS format. This replaces the
play button icon.
Show a speaker icon instead of a music note icon for posts with sound.
Doing this requires doing `.includes(:media_asset)` in a bunch of
places to avoid N+1 queries when we access the post's duration.
Broken in 49bc2364 by the use of @extend.
Here's what happened. There are two CSS rules that both apply to pool links:
* a:link { color: var(--link-color); }
* .pool-category-series a { color: var(--series-pool-color); }
These rules have equal specificity (0-1-1). This means the rule that is
defined last takes priority. This means the order in which CSS files are
included matters. 49bc2364 used the @extend directive in a rule for
popup menus, which required an @import, which changed the order of the
CSS files, which made the a:link rule suddenly take priority over the
series pool rule.
The proper fix would be to use Sass's new @use directive instead of
@import, but that requires the latest version of Sass, which requires
the latest version of Webpacker, which we can't upgrade to yet because
of breaking changes.
The real moral of the story is: our CSS is very fragile because of
specificity rules. It's very important that rules are defined in a
certain order, otherwise our CSS will break.
* https://sass-lang.com/documentation/at-rules/use
* https://developer.mozilla.org/en-US/docs/Web/CSS/Specificity
Standardize font sizes and heading tags (<h1>-<h6>) to be more
consistent across the site.
Changes:
* Introduce font size CSS variables and start replacing hardcoded font
sizes with standard sizes.
* Change header tags to use only one <h1> per page. One <h1> per page is
recommended for SEO purposes. Usually this is for the page title, like
in forum threads or wiki pages.
* Standardize on <h2> for section headers in sidebars and <h3> for
smaller subsection headers. Don't use <h4>-<h6>.
* In DText, make h1-h4 headers all the same size. Standard wiki style is
to ignore h1-h3 and start at h4.
* In DText, make h4-h6 the same size as the h1-h3 tags outside of DText.
* In the tag list, change the <h1> and <h2> tag category headers to <h3>.
* Make usernames in comments and forum posts smaller. Also change the
<h4> tag for the commenter name to <div class="author-name">.
* Make the tag list, paginator, and nav menu smaller on mobile.
* Change h1#app-name-header to a#app-name-header.
https://fontawesome.com/how-to-use/on-the-web/other-topics/performance
The default version of Font Awesome uses Javascript to replace <i> tags
with dynamically generated SVG elements. This adds a lot of weight to
the Javascript bundle (at least 1MB+), even when using subsetting to
load only the icons we actually use. The web font version is less
featureful than the JS version, but much lighter weight.
