We are currently in the process of removing legacy CSS from MediaWiki. In many cases this will significantly reduce the amount of CSS needed to render a MediaWiki page which will lead to better page load times, however may impact articles in one particular way.
If your wiki uses `<div class="mw-content-ltr">` or `<div class="mw-content-rtl">` without dir or lang attributes, these will currently not work in the Vector modern skin and will soon stop working in future in other skins without action.
# Action required
1) Check the impact on your wiki.
Go to `yourwiki`/w/index.php?title=Special:Search&search=insource%3A%2Fmw-content-(ltr|rtl)["']\>%2F&profile=advanced&fulltext=1&ns0=1&ns1=1&ns2=1&ns3=1&ns4=1&ns5=1&ns6=1&ns7=1&ns8=1&ns9=1&ns10=1&ns11=1&ns12=1&ns13=1&ns14=1&ns15=1&ns100=1&ns101=1&ns108=1&ns109=1&ns118=1&ns119=1&ns828=1&ns829=1&ns2300=1&ns2301=1&ns2302=1&ns2303=1`
Check the results in the top right corner. If the number is significant, you are impacted.
2) Understand the issue
Click one of the search results to the above query and view in Vector modern by adding the following query string parameter:
?useskin=vector&useskinversion=2
3) Fix the issue
Add the following rule to MediaWiki:Common.css (or MediaWiki:(Monobook|Vector).css` if preferred.
```
/* Short term fix for T___. Please remove when all templates have dir attributes */
.mw-content-ltr {
/* @noflip */
dir
ection: ltr;
}
}
.mw-content-rtl {
/* @noflip */
dir
ection: rtl;
}
```
4) Notify users that the dir attribute must be used going forward.
For example:
Correct:
```
<div class="mw-content-ltr" dir="ltr" lang="en">Today's featured article</div>
<div class="mw-content-rtl" dir="rtl" lang="he">ערך מומלץ </div>
```
Incorrect:
```
<div class="mw-content-ltr">Today's featured article</div>
<div class="mw-content-rtl">ערך מומלץ </div>
```