Sometimes, you have to start over.
If you edit your post too enthusiastically - or if you switch between Compose and HTML modes too much, while editing - you can corrupt the formatting. You can cause a cornucopia of symptoms, from messed up index pages, with dropped sidebars, to unreadable posts (and yes, pages).
Even the old trick of doing nothing but toggling between Compose and HTML modes may not work, every time.
If the page or post is completely unusable, you reformat, and start over.
In Compose mode, you use the "Remove formatting" tool. This removes everything but the raw text.
It's a mess! (OK, we've all seen worse).
Select everything in the page / post.
And use the editor "Remove formatting" tool ("Tx").
That's cleaner, isn't it?
And now, start over.
With all formatting removed, you start over. It's not what you want to do, most likely - but it's the best solution. And maybe, this is a good solution, if you must compose posts using MS Word.
An Important Update
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