1. PerceivableLevel A
1.1.1 Non-text Content
비텍스트 콘텐츠
Summary
Every non-text element — images, icons, charts — needs a text alternative that serves the same purpose. What matters is the element's function, not its visual appearance. Purely decorative images should carry an empty alt so assistive technology skips them.
Common failures
- Alt text that repeats the filename (`alt="IMG_2024.png"`) or says nothing useful, like `alt="image"`.
- Omitting the alt attribute entirely on decorative images, so screen readers announce the file path.
Corresponding KWCAG 2.2 items
- 5.1.1 Appropriate Alternative Text