 <h4>Situation B: If information provided by the user is required to be in a specific data
               format or of certain values.
            </h4>
            
            <ol>
               
               <li>
                  
                  <a href="https://www.w3.org/WAI/WCAG21/Techniques/aria/ARIA18" class="aria"></a>
                  
               </li>
               
               <li>
                  
                  <a href="https://www.w3.org/WAI/WCAG21/Techniques/aria/ARIA19"