**Description:**
I think that MediaWiki ignore „baseline-shift” in SVG files. Example: https://commons.wikimedia.org/wiki/File:Diazepam-BUGTRACKINGVERSION.svg. The `3` at the top should be as subscript.
The related SVG code is:
```
lang=svg
<text fill="#000" font-family="Arial" font-size="11pt" x="115.3" y="66.6395111337">H<tspan baseline-shift="sub" font-size="75%">3</tspan>C</text>
```
Workaround is:
* using instead the `dy` or `y` attribute (with extra `<tspan>`, also support in every SVG GUI editor which supports baseline-shift)
----
Since an update of librsvg `baseline-shift="sub"` works, but `baseline-shift="-5px"` still does not work, see f.e. [[ https://commons.wikimedia.org/wiki/File:T7792_Example_of_baseline-shift_using_explicit_value.svg | T7792_Example_of_baseline-shift_using_explicit_value.svg ]] or [[ https://commons.wikimedia.org/wiki/File:T7792_Fluoxetine_2.svg | File:T7792_Fluoxetine_2.svg ]] .
--------------------------
**See Also**:
https://gitlab.gnome.org/GNOME/librsvg/issues/129
https://bugzilla.gnome.org/show_bug.cgi?id=340047 RESOLVED FIXED