Some pages use a technique so that the code will scroll in its own area instead of taking up lot and lots of space on the page. There is a visual cue with the vertical scroll bar to the right of the code on those pages.
To copy code from pages that use this technique, you have a few options:
- Right-click on a line of code, and select "This Frame > Show only this frame". You can then select and copy whatever you want from the code. This works in Firefox, YMMV in other browsers.- Right-click on a line of code, and choose "Select All". You can then copy all the code. This also works in Firefox, YMMV in other browsers.- Click somewhere in the code area and drag the mouse to select as much code as you want, including all of it. You can then copy what you have selected.- Click the mouse somewhere on a line of code, then press [Ctrl-A] to select all the code at once. You can then copy the selected code.
Using the technique is a choice of the person who created the page. I agree it can be confusing if you are not experienced with it.