ADA, WCAG2.1, acsb

 acsb, accessiBe, CSS and JavaScript accessibility best practices

官網: https://www.w3.org/WAI/tutorials/menus/structure/

文件: https://northwestmediacollective.com/wp-content/uploads/2020/10/2020-10-05_21-06-16_alaskashipsupply.com_.pdf

文件: https://developers.google.com/web/fundamentals/accessibility/focus/using-tabindex?hl=zh-tw

aria-hidden: 

https://developer.mozilla.org/zh-CN/docs/Web/Accessibility/ARIA/ARIA_Techniques/Using_the_aria-hidden_attribute