Download is looking a bit broken, template and translate syntax appearing...
Topic on Template talk:DownloadMediaWiki
Commenting code doesn't quite work when you have already commented text inside. <!--something <!--something else--> here-->
will produce here-->
, only whatever is inside first<!-- and first --> will be commented.
I added more comment markup to make it work, though it will be a bit harder now, I assume, to uncomment the code when needed.
@Shirayuki: FYI ^
Done by using display:none. But hiding content with display:none may cause accessibility issues.