Use the Format Stripper tool to strip your content of unwanted HTML tags. You may wish to do this when you copy text from one location to another to ensure that no unwanted formatting comes with the text. You can also use this to strip out any inline formatting, to ensure that the stylesheet styles are being used.
On the toolbar, click the Format Stripper button.
From the drop-down menu, you can select to strip all HTML tags or just one particular type of tag.