Compare Special:Contributions/MediaWiki message delivery on [[ https://www.wikidata.org/wiki/Special:Contributions/MediaWiki_message_delivery?useskin=timeless | Wikidata ]] and [[ https:/meta.wikimedia.org/wiki/Special:Contributions/MediaWiki_message_delivery?useskin=timeless | Meta ]] versus [[ https:/en.wikipedia.org/wiki/Special:Contributions/MediaWiki_message_delivery?useskin=timeless | English Wikipedia ]].
The font, for instance, is too small and now displays as Arial instead of Helvetica, because the load.php CSS is different. (I think they were different to begin with, but maybe there was a syncing error.)
Line 4876, English Wikipedia:
```
body {
font-family:'Helvetica Neue','Nimbus Sans','Helvetica','Arial',sans-serif;
color:#001133;
background:#777777;
font-size:0.95em;
line-height:1.4
}
```
Line 4637, Meta-Wiki:
```
body {
font-family:sans-serif;
color:#001133;
background:#777777;
font-size:0.9em;
line-height:1.4
}
```
This probably started around Thursday afternoon UTC. This happens in both Firefox and Safari on macOS 10.14, although that shouldn't matter for this issue.