Kilotest: Diagnoses of option groups not marked? violation by HTML element 388 on Metropolitan Transportation Authority page

Basics

About the Metropolitan Transportation Authority page

About HTML element 388

About the option groups not marked? issue

Diagnoses

Here is how rule engines diagnose the option groups not marked? issue for HTML element 388 of the Metropolitan Transportation Authority page.

  1. If this selection list contains groups of related options, they should be grouped with optgroup.

    Tool: HTML CodeSniffer (Squiz Labs)

    Rule: W-WCAG2AAA.Principle1.Guideline1_3.1_3_1.H85.2