Note 3 Contrast calculations can be based on colors defined within the technology (such as HTML, CSS and SVG). Pixels modified by user agent resolution enhancements and anti-aliasing can be ignored. Guideline 2.5 Input Modalities Understanding Input Modalities | How to Meet Input Modalities Make it easier for users to operate functionality through various inputs beyond keyboard. Success Criterion 2.5.1 Pointer Gestures Understanding Pointer Gestures | How to Meet Pointer Gestures (Level A) All functionality that uses multipoint or path-based gestures for operation can be operated with a single pointer without a path-based gesture, unless a multipoint or path-based gesture is essential . Note This requirement applies to web content that interprets pointer actions (i.e.