8fa54d0fda
Previous solution was relying on fomantic selector `.ui.label.hidden` to
hide the elements in their empty state, but this doesn't work any more
with the removal of the `label` class. Instead, introduce a standalone
CSS rule for the `hidden` class, which is universally usable as a single
class.
We can unfortunately not use the existing `hide` class because without
the `!important`, it does not have enough specificity to win against
fomantic's `.ui.menu:not(.vertical) .item {display: flex}` rule.
Followup and fixes regression from
https://github.com/go-gitea/gitea/pull/22169.
Before:
<img width="98" alt="image"
src="https://user-images.githubusercontent.com/115237/217959380-d3279ff3-526a-4ac4-9a18-3ab7c9ae91dd.png">
After:
<img width="77" alt="image"
src="https://user-images.githubusercontent.com/115237/217959463-44852716-cb25-4110-8481-668842ad4454.png">
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| fomantic | ||
| js | ||
| less | ||
| svg | ||
