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Accessibility mistakes
Nobody is saying that making your website accessible is easy but here are some mistake even the big players made.
- Missing ALT text
The ALT description is used on images and will appear if images are not loaded or switched off by the user. All images should have this ALT description set, even if the image is for decorative purposes, where it would normally be empty (“”).
Missing ALT text can be devastating for web sites that use images for text, especially menu items used for navigation.
- Non resizable text
Resizing text can be very useful for partial or poor sighted users.
By setting font sizes to certain pixel sizes prevents users from being able to resize text, always set font sizes to relative values like em or %.
- Using images for text
Having an image to display text prevents resizing of text and usually appears blurry to people that may use a screen magnifier. It also prevents useful text functions like copy and paste.
- Link text does not make sense out of context
Blind internet users often browse websites by tabbing from one link to another, or will have a screen reader to read out a list of links. How can you differentiate between lots of Click here’s?
- Using HTML to colour/size text
Some users may want to change the font colour of web sites, perhaps to increase contrast. By using HTML markup, such as <font> or <body> tags to specify font size or colour you are preventing users froim being able to override your settings. Always use CSS to specify colours.
- Using tables for layout
Tables should only be used for displaying data and never for layout. Use CSS to display your information.
- Relying on JavaScript
Many people don’t have JavaScript switched on so relying on JavaScript is not a viable option. Always use an alternative within the <noscript> tags.
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