Valve's CSS person thought "medium" is a valid value for font-weight. Can't say I haven't made similar mistakes though, but I also wasn't being paid for it in those scenarios and it probably wasn't done 44 times. For reference - https://github.com/SteamTracking/SteamTracking/blob/3f87fb90d396d9f286c6b10f8660c3f222f4efa3/ClientExtracted/steamui/css/chunk~2dcc5aaf7.css #Valve #CSS #webdesign