You can easily change all text that is formatted in one style to another style. Using this technique can help you maintain formatting consistency in your documents.
Select one example of text containing the formatting that you want to change.
Click to display the Styles and Formatting task pane.
Word displays the Styles and Formatting task pane.
The style for the selected text appears here.
Available formatting styles appear here.
Click Select All.
Word selects all text in your document formatted using the style of the text you selected in step 1.
Click the style you want to apply to all selected text.
Word changes all selected text to the style you selected in step 4.
Click anywhere to continue working.
What should I do if I do not see the style that I want to use?
You have two choices. First, click the Show and click All Styles to view the built-in styles as well as the styles in use in your document. If you still do not see the style you want to use, you can create it; see the section “Save Formatting in a Style.”
What should I do if an existing style is close to what I want, but not quite exactly what I want?
You can change the style’s formatting; see the section “Modify a Style” for details. Or, you can apply the style that is close to what you want and then manually adjust the text to make it look exactly the way you want.