1. Use Firefox Accessibility Extension to identify the accessibility failures and warnings in http://google.com
2. Fix the failures you found.
Accessibility Extension
List of Accessibility Issues Summary
| beta Rule | Violations | Message | Class |
|---|---|---|---|
| Check | 1 | Title should indicate both name of the site and topic of the page. | Title |
| Warn | 2 | Each nested table, map with area, ol or ul element that appears to be a navigation bar or menu should be immediately preceded by a header element (h2..h6 -or- role=heading). | Menu and Navigation Bars |
| Check | 4 | Avoid placing small links close together. | Links |
| Check | 6 | Set font sizes using relative measurements (not px, pt, in, cm, mm). | Text Sizing |
| Fail | 10 | Contrast ratio is below the minimal acceptable level (3:1) | Colour Contrast |
| Warn | 19 | Contrast ratio is below the optimal acceptable level (7:1) | Colour Contrast |
Date: 11/5/2012 20:34 PM
URL: http://www.google.com/webhp?hl=zh-TW&tab=ww
對比度低於最小水平3:1 改得非常有難度
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