If you click the increase font size button too many times and make the font size too big, you can click the button until the desired font size is displayed.

Decrease Font Size.

Explanation:

If the font size becomes too big by repeatedly clicking too many times Increase Font Size.So to decrease the font size you should click on the decrease font size until the size becomes desirable. Decrease font size as the name suggests is used to decrease the size of the font.So the answer is Decrease font size.

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