On Windows systems, Monaco isn't installed by default and Courier New is quite hard to read imo, especially with the dark theme. Could we have a more modern font for code boxes, like Consolas?
It also seems like Firefox for some reason automatically restricts the vertical size of code boxes, unlike Chrome or Edge. Would it be possible to enable the resize grabbers for code boxes that are already present on reply boxes?
My current setup:
Super Famicom ("2/1/3" SNS-CPU-GPM-02) → SCART → OSSC → StarTech USB3HDCAP → AmaRecTV 3.10
I'm on Firefox and the code boxes are no longer height-limited (THANK YOU), maybe try shift-clicking the refresh button?
About the font, if you really want to cover all bases, just change the font to "monospace", and let the user configure their browser with whatever font they want to appear for "monospace" (in Firefox, it's Settings, Font, Advanced, Monospace).
Resize grabbers was something I suggested for this a few years back, but it's apparently not something we can easily add to phpBB because it's not using <textarea>. Perhaps with a move to xenforo, which we'd still like to do sometime. Removing the size limit altogether is a good and simple solution for now.
The new box sizing seem to be working fine for me in Firefox after a hard refresh. I don't have a strong opinion on the font (the Firefox monospace default seems to be Consolas), but if people are indeed interested in this, I'll poke brizzo. Changing it to "monospace" sounds pretty reasonable.