Understanding 1.4.5 Show Hide techniques and failures for 1.4.5 Sufficient Advisory Failures Sufficient Techniques for Success Criterion 1.4.5 Note: Other techniques may also be sufficient if they meet the success criterion. See Understanding Techniques. C22: Using CSS to control visual presentation of text C30: Using CSS to replace text with images of text and providing user interface controls to switch G140: Separating information and structure from presentation to enable different presentations PDF7: Performing OCR on a scanned PDF document to provide actual text Advisory Techniques for Success Criterion 1.4.5 C12: Using percent for font sizes C13: Using named font sizes C14: Using em units for font sizes C8: Using CSS letter-spacing to control spacing within a word C6: Positioning content based on structural markup Back to top 1.4.6 Contrast (Enhanced) Level AAA The visual presentation of text and images of text has a contrast ratio of at least 7:1, except for the following: Large Text: Large-scale text and images of large-scale text have a contrast ratio of at least 4.5:1; Incidental: Text or images of text that are part of an inactive user interface component, that are pure decoration, that are not visible to anyone, or that are part of a picture that contains significant other visual content, have no contrast requirement. Logotypes: Text that is part of a logo or brand name has no contrast requirement. Understanding 1.4.6 Show Hide techniques and failures for 1.4.6 Sufficient Advisory Failures Sufficient Techniques for Success Criterion 1.4.6 Note: Other techniques may also be sufficient if they meet the success criterion.