With Chrome and Chromium when last link of the column is clicked in category page it may jump to next column and ignore the click. When browser refreshes/redraws the page the link will jump back to the original column. Problem is not category pages specific and it seems to happen also in other lists where "column-width" is used.
Problem is reported when Chrome or Chromium is used with Mac, Linux or Windows platforms. With Safari and Firefox bug doesn't happen.
How to repeat the bug
# Go to category page with Chrome: https://en.wikipedia.org/wiki/Category:Turku
# Re-size windows so that there is only one column
# click last link of the column (should be "Turku sub-region" which is last element of the column)
## Result should be that clicked link will disappear
## and if you click again to the empty space where link was it should return.
Origin of the problem seems to be CSS-rule " ul { margin: 0.3em 0 0 1.6em }" which comes from modules [[ https://fi.wikipedia.org/w/load.php?debug=true&lang=fi&modules=mediawiki.skinning.interface&only=styles&skin=vector&* | mediawiki.skinning.interface ]] and [[https://fi.wikipedia.org/w/load.php?debug=true&lang=fi&modules=mediawiki.legacy.shared&only=styles&skin=vector&* | mediawiki.legacy.shared]]
Temporary fix:
```
mediawiki:common.css
ul {
margin-bottom: 0.5em !important;
}
```
Discussions of the bug in fiwiki
- [[https://fi.wikipedia.org/wiki/Wikipedia:Kahvihuone_(tekniikka)#Palstoitus_temppuilee|Palstoitus temppuilee]] (19.4.2015)
- [[https://fi.wikipedia.org/wiki/Wikipedia:Kahvihuone_(tekniikka)#Palstoitus_temppuilee_spinoff:_L.C3.A4hdeviitelinkit_temppuilee|Palstoitus temppuilee spinoff: Lähdeviitelinkit temppuilee]] (17.5.2015)