4.5 Accessibility

文档摘要

4.5 Accessibility 4.5 Accessibility Accessibility A11yWeb 4.5.1 4.5.2 HTML HTML HTML5 4.5.2.1 4.5.2.2 Web 4.5.2.3 ( ) / WebVTT 4.5.3 WAI-ARIA WAI-ARIA (Web Accessibility Initiative - Accessible Rich Internet Applications) UI HTML ARIA 4.5.3.1 ARIA Roles ARIA Roles 4.5.3.2 ARIA States Properties ARIA States Properties / CSS JavaScript 4.5.3.