Understanding 2.5.8 Show Hide techniques and failures for 2.5.8 Sufficient Advisory Failures Sufficient Techniques for Success Criterion 2.5.8 Note: Other techniques may also be sufficient if they meet the success criterion. See Understanding Techniques. C42: Using min-height and min-width to ensure sufficient target spacing Back to top Principle 3 – Understandable Information and the operation of the user interface must be understandable. Guideline 3.1 – Readable Make text content readable and understandable. 3.1.1 Language of Page Level A The default human language of each Web page can be programmatically determined.