Hi Purps, actually for me it has been sort of an ongoing issue. I use Chrome for a browser and don't usually have the window set for full screen (TOO Wide. for me it's difficult to read across a line some 20+ inches long then jump back and actually find the next line, especially when the type is not spaced well and no one uses paragraph indents etc.) Anyway the issue with pictures and more specifically with videos, is that usually the viewer on your webpage is wider than the space in the center colume, so it just cuts of maybe a quater of the viewer. Even if I enlarge my browser to full screen, it doesn't correct the issue.
As far as just pictures, many that are posted have text above them to "enlarge this image" or "view image full screen". If you click on the "enlarge this image", it actually makes it smaller but at least you get the entire image into the colume space so you can read the caption etc.
With videos I just click on the YouTube link to watch them. I was never really sure if the issue was the limitations in your website format / template, or my computer settings. I'm sure you have limited control of the sizing of the columes on your site and probably less to say about the sizing of the video viewer etc. Since the issue has not been raised for discussion, I wasn't sure if it was just an issue with my system.
Having my share of 'Senior Moments', I cant say as I recall having this issue before I started using Windows 10 or if that would have any effect on it. It's really not a major problem, just a big pain in the butt. Hope this is of some help. : thumbs up: