术语表

Unicode、编码和排版术语解析。

全部 Encoding Unicode Standard Typography Input Methods Web & HTML Accessibility Programming & Dev

Alt Text for Symbols

Best practices for providing accessible text alternatives for decorative and meaningful symbol characters.

256 Unicode characters (U+2800–U+28FF) representing all possible combinations of 8-dot Braille cells.

Assistive technology that reads text and UI elements aloud. Unicode character names are used for symbol pronunciation.

WCAG 1.1.1 guideline requiring text alternatives for non-text content including symbols and icons.