How to Change Text Size or Colors

This page is in the process of getting a major rewrite and content update.

The WAI website is designed to let you change the text size, text and background colors, and other display settings through standard browser settings.

This page shows you how to use some of these browser display settings.

To Zoom In or Out

Most web browsers include functionality that allows for an increase or decrease text and content in web pages via a feature called browser zoom. Some browsers also give control for text-only size adjustments. Additionally, there are a number of browser extensions or add-ons that provide users additional control over the display of content.

Most commonly, the commands to increase or decrease zoom levels in browsers are:

Browser vendors have specific, detailed, and updated guides available for changing the zoom and/or text display sizes. We have collected links to some of these resources for your convenience.

Why doesn’t this work with some other websites?

The browser settings on this page should work when browsers and websites meet WAI guidelines and are designed for accessibility, flexibility, and user control. However, some browsers do not provide as much user control, and some websites are designed to defeat browser settings. Text resizing does not work well in browsers and websites that do not meet accessibility guidelines.

For a Plain Layout View

Turning off the style sheet gives a plain layout view, which:

Browser Example Menu Items
Firefox Firefox screen capture as described in the page View ▶
Page Style ▶
No Style
Opera Opera screen capture as described in the page View ▶
Style ▶
User Mode

Other Text and Color Changes

Many browsers provide functionality to set different aspects of font and color. Below are examples of how to access this functionality.

Browser Example To access functionality:
Firefox Firefox screen capture as described in the page

Windows Menu items:Tools ▶ Options
Macintosh Menu items: Firefox ▶ Preferences

In dialog box: General (in the left pane), Fonts & Colors (button)


Windows Menu items: Tools ▶ Preferences
Macintosh Menu items: Opera ▶ Preferences

In dialog box: Fonts and Page Style (in the left pane)

Should all websites include instructions like this?

It is not an accessibility requirement that websites include information on changing text sizes and colors like this page. WAI chose to include this information to help people who want to know how to change their browser settings and may not know how.

Web browsers and websites should be designed following WAI guidelines so that people can easily change text sizes and colors.

Note: No Browser Endorsement

W3C WAI does not endorse specific Web browsers and does not recommend one browser over another. While some common browsers are included in this page, mention of a specific browser does not imply endorsement or recommendation.

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