You can customize the Internet Styleguide by changing the page layout, colors, or text size. These properties are controlled by stylesheets, and for text size, also by your browser.
Stylesheet Selections
Browser-based Changes
Current browsers let you adjust the text size or select alternate stylesheets.
Recent versions of Internet Explorer have a Text Size option under View. Opera calls this feature Zoom and also locates it on the View menu. Opera's zoom affects everything on the page, not only the text.
Newer browsers also allow user style sheets. This gives you some control over text, colors, and most other elements of a Web page. In current versions of Internet Explorer, user style sheet options are on the Accessibility menu under Tools: Internet Options.
Elsewhere:
- In A List Apart, "Alternative Style" by Paul Snowden describes a javascript style switcher, and Daniel Ludwin devises a Netscape 4 compatible stylesheet switcher.