There is a quick and dirty manual way, but needs a couple of minutes of cleanup.
- Right click on the header bar and select Inspect (Q)
- You will be taken to the Inspector. (in Firefox)
- Slowly scroll down the list of <div>'s until the text you want is highlighted.
- Right Click►Copy►Inner HTML
- Paste it into your epub.
- Then you just need to delete the bits you don't want.