can edit my page but can't change my test with the options.

I can type but my text stays the same size.  I tried tohighlight it and then change the text size or style but it won't change.

www.bigskyboxers.com/puppies2.htm 

Is there a way to put in an adobe editor with the features in the one in this forum.  This one is nice because it has tables but at the same time it is simple.  Heidi