Anita,
Your post caught our eyes (Brian and I). That is why it took us a bit to respond.
We are not familiar with the Maxthon browser, so any unusual features you may use with it and FTH are basically rolling the dice.
This basically looks like overriding of the underlying FTH styles/CSS classes, either intentionally or unintentionally.

The provided themes are there for a reason... Toastmasters does branding to provide a specific consistent marketing look that is intended to benefit all TM clubs. While we certainly do provide some specific color controls and Appearance features to enable help each club make their website distinctive, by no means do we sanction outright overriding of the provided themes or underlying styles. Additionally, doing this sort of thing can also serve to provide inspiration and ideas for hackers. If you check in with us first and if we can find a way to help you achieve your objective without killing the themes or altering the underlying code, we are happy to assist.
With that said, I was able to determine that somehow you ended up with some nasty styling code embedded in your home page content.
You would only be able to see this from Source View in the Home Page content. You also had some styling on your home page text. I removed the above from your home page content, and set the color of the text to black. You may need to finish up to get it back to what you want.
The problem with the style code that was inserted is the "!important" clauses which causes the styling to override *any* and *all* other style codes (colors, fonts, etc.) that are inserted. None of our color controls or the editor coloring works with those clauses embedded in the home page content. That is why you could not change it back.