W3CWeb Accessibility Initiative Home

User Agent Bindings for Changing Text Size

On this page: Test 1 | References | About these tests

Nearby: More HTML 4.01 Tests | UAAG 1.0 Test Suite

UAAG 1.0 Requirement

Checkpoint 11.5 Default input configuration (Priority 2 )
Provision 1 : Ensure that the user agent default input configuration includes bindings for the following functionalities required by other checkpoints in this document: move content focus to the next enabled element in document order, and move content focus to the previous enabled element in document order (checkpoints 9.3 and 9.7); activate the link designated by the content focus (checkpoints 1.1 and 9.1); search for text, search again for same text (checkpoint 9.8); increase the scale of rendered text, and decrease the scale of rendered text (checkpoint 4.1); increase global volume, and decrease global volume (checkpoint 4.7); and stop, pause, resume, and navigate efficiently selected audio and animations, including video and animated images (checkpoint 4.5).
Checkpoint 1.1 Full keyboard access (Priority 1 )
Provision 1 : Ensure that the user can operate, through keyboard input alone, any user agent functionality available through the user interface.

Test 1 :

Procedure

  1. Using the keyboard or an assistive technology that emulates the keyboard, increase the size of the rendered text on this page.
  2. Using the keyboard or an assistive technology that emulates the keyboard, decrease the size of the rendered text on this page.

Run test

XX-small size text

X-small size text

Small size text

Medium size text

Large size text

X-large size text

XX-large size text

14pt size text

14px size text

Medium size parent text

Smaller size child text

Medium size parent text

Larger size child text

Medium size parent text

150% size child text

Medium size parent text

75% size child text

Medium size parent text

1.5 em size child text

Medium size parent text

.75 em size child text

Expected results

  1. Using the input configuration of the default user agent bindings, the user can increase the size of the text on this page.
  2. Using the input configuration of the default user agent bindings, the user can decrease the size of the text on this page.

Source code

<div>
  <p style="font-size: xx-small">XX-small size text</p>
  <p style="font-size: x-small">X-small size text</p>
  <p style="font-size: small">Small size text</p>
  <p style="font-size: medium">Medium size text</p>
  <p style="font-size: large">Large size text</p>
  <p style="font-size: x-large">X-large size text</p>
  <p style="font-size: xx-large">XX-large size text</p>
  <p style="font-size: 14pt">14pt size text</p>
  <p style="font-size: 14px">14px size text</p>
  <p style="font-size: medium">Medium size parent text</p>
  <blockquote>
    <p style="font-size: smaller">Smaller size child text</p>
  </blockquote>
  <p style="font-size: medium">Medium size parent text</p>
  <blockquote>
    <p style="font-size: larger">Larger size child text</p>
  </blockquote>
  <p style="font-size: medium">Medium size parent text</p>
  <blockquote>
    <p style="font-size: 150%">150% size child text</p>
  </blockquote>
  <p style="font-size: medium">Medium size parent text</p>
  <blockquote>
    <p style="font-size: 75%">75% size child text</p>
  </blockquote>
  <p style="font-size: medium">Medium size parent text</p>
  <blockquote>
    <p style="font-size: 1.5em">1.5 em size child text</p>
  </blockquote>
  <p style="font-size: medium">Medium size parent text</p>
  <blockquote>
    <p style="font-size: .75em">.75 em size child text</p>
  </blockquote>
</div>

References

  1. HTML 4.01 specification for Text

About this test suite

This test is part of a test suite for the User Agent Accessibility Guidelines (UAAG) 1.0 . This work is conducted by the User Agent Accessibility Guidelines Working Group , which is part of W3C's Web Accessibility Initiative (WAI) . Please send comments on this test to w3c-wai-ua@w3.org ( public archive ).

Test created by:

Last modified: $Date: 2003/04/02 23:46:57 $ by $Author: jongund $

Copyright © 1999 - 2003 W3C® ( MIT , INRIA , Keio ), All Rights Reserved. W3C liability , trademark , document use and software licensing rules apply.