Gian Wild - WCAG2 accessibility: the hidden nuggets

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The hidden nuggets of WCAG2 By Gian Wild AccessibilityOz @accessibilityoz www.accessibilityoz.com.au gian@accessibilityoz.com.au

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by net_efekt

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by shannonkringen ALT attributes

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by shannonkringen ALT attributes

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by shannonkringen ALT attributes

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by shannonkringen ALT attributes Empty ALT attributes Image next to link text Image galleries CAPTCHA Logos Images of text* Long descriptions

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by shannonkringen ALT attributes Do not use the following words: • “filename” • “gif” / “jpg” / “png” etc • “image” • “graphic” • “click” • “photo”*

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by tanakawho Information and relationships

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by tanakawho Information and relationships Headings Field labels Fieldsets Table headers including SUMMARY/CAPTION No table headers for layout tables

for lists of links Q and BLOCKQUOTE

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by Viktor Hertz Colour contrast

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by Viktor Hertz Colour contrast High colour contrast or low colour contrast? Large text Logo / incidental clause 1.4.8 Visual Presentation: For the visual presentation of blocks of text, a mechanism is available to achieve the following: • Foreground and background colours can be selected by the user. AAA

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by andrew713 Location

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by andrew713 Location 1.3.3 Sensory Characteristics: Instructions provided for understanding and operating content do not rely solely on sensory characteristics of components such as shape, size, visual location, orientation, or sound. (Level A)

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by Jinx! Keyboard

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by Jinx! Keyboard Keyboard and the mouse hover effect Forms and submit buttons “Click here” links Keyboard trap 2.4.7 Focus Visible: Any keyboard operable user interface has a mode of operation where the keyboard focus indicator is visible. AA

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Click here

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Link text Link text and surrounding context 2.4.9 Link Purpose (Link Only): A mechanism is available to allow the purpose of each link to be identified from link text alone, except where the purpose of the link would be ambiguous to users in general. AAA

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Source order

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Focus order 1.3.2 Meaningful Sequence: When the sequence in which content is presented affects its meaning, a correct reading sequence can be programmatically determined. 2.4.3 Focus Order: If a Web page can be navigated sequentially and the navigation sequences affect meaning or operation, focusable components receive focus in an order that preserves meaning and operability.

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by mikebaird Skip links

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by mikebaird Skip links Must be visible on keyboard hover First link on the page Over 50% of all skip links on the web are broken Structural labels: http://www.maxdesign.com.au/2006/01/17/ about-structural-labels/

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And don’t forget…

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by SweetOnVeg

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Questions? By Gian Wild AccessibilityOz @accessibilityoz www.accessibilityoz.com.au gian@accessibilityoz.com.au