1024 is the pixel width on the long side.
The long side is what the resizing script looks at. The short side is whatever it is to maintain the same ratio of H:W. Not necessarily 768. Could be 12, could be 1023.
I don’t know if you have a background in computer tech and IT, so I have been explaining this as a professional not personal opinions.
PCs came first, before we had mobile tech, cellphone, tablets etc., therefore resolutions are still described in Computer Resolution sizes.
Also when you build a website, by hand, or a backend like a CMS Content Management System, like Joomla, you are building a site around PC resolutions and computer browsers first, that is the proper way, and the industry standards. Then you make it compatible with other OS operating systems/platforms and their browsers and resolutions.
For online, we base these things around W3C, The World Wide Web Consortium.
The World Wide Web Consortium (W3C) develops standards and guidelines to help everyone build a web based on the principles of accessibility, internationalization, privacy and security.
www.w3.org
Now, with all the latest tech, we do have other resolutions, and we don’t use in IT as saying Long, we use Width first Height second.
1024 is not called the Long side that is the resolution width. If we are referring to 1024x768.
I forgot to mention before, there is 1280x1024, but this resolution came after 1024x768. So in the industry standards, if someone only said 1024, it would commonly imply first as talking about 1024x768, otherwise you’d clarify it.
And my mistake too, you did originally mention 1024p, so that would actually be 1280x1024. And that 1024 would be the Height Resolution.
So when you say could be 12, or 1023, if that is in reference to other resolution sizes, again, when you are online, as we are in Cyberspace everything is PC first, we speak of those resolutions first.
And in Standard PC Resolutions there is no 12 or 1023. Please look back if interested at the Wiki link I posted for resolutions.
As end-users, we can make our images any resolution size we want. So I am not sure if that is what you meant when referring to 12 or 1023. I was only asking what size the forum downsizes too, which should be a Standard Resolution. I wasn’t asking about my images resolutions. Our image resolutions are only important if a site downsizes them.
If a forum downsizes as I’ve asked, and if they are doing things by Standards, which they should, then you downsize at PC Resolutions.
640x480
800x600
1024x768
1280x720
1366x768
1920x1080
And so on….
It‘s always PC first…
Thanks