TOPIC: Text font reverts (going crazy)

I created a page and made the parent on drop down as Navigation under content but every time I added content the home page content showed up.
I hit edit and deleted the home page content out but it shows up everytime.
That was bad enough but I decided to hit page and tried "create page".
Great I pasted in my content but now every time I try to change the text size and color it reverts back and I am also now stuck with two menu items with the same name.
Any advice from you experts out there?
Also where do I go to delete the other menu name as it will not go away.

Click content and check the URL of the page you used. If you click create content, make sure you give the page a URL.

Click MENUS to delete the other menu items.

Got the delete in menus however still can not seem to change font as it looks OK in preview then reverts on save.
Was I supposed to create a new page and menu item from content or page.
They both added the extra menu title.

This is the URL.. nachichicago.homeinspectorpro.us/

It is auto generated it says at bottom unless I change it later.

an alias will be generated for you. If you wish to create your own alias below, uncheck this option. To control the format of the generated aliases, see the automated alias settings.

Here is what I see in the editor and what the result is.

(Update)
I was able to keep font changes after hitting full HTML format however it must be changed or reset from filtered every time.

Do not recall this issue in the past however I am pasting from a live Front Page type site.

Sounds like your settings are set to filtered HTML. I'll check it out tonight.