On the General tab, click Accessibility. To use
the same settings as those used in your instance of Microsoft
Internet Explorer, select Ignore font styles specified on Web
pages and Ignore font sizes specified on Web pages. You
also can choose to use the settings specified in your own style
sheet.
To customize the font style used in Help, on the General
tab, click Fonts, and then click the font style that you
want.
Note
If you change the font of the Help topics in the
Help window, the change also affects the font when you view a Web
page in Microsoft Internet Explorer.