⧋ TRIANGLE WITH UNDERBAR UTF-8 character with hex code 29CB

Using HEX code of TRIANGLE WITH UNDERBAR in HTML file

<span> &#x29CB; </span>

Using Decimal code of TRIANGLE WITH UNDERBAR in HTML file

<span> &#10699; </span>

Using HEX code of TRIANGLE WITH UNDERBAR in CSS file for content

span { 
    content: '\29cb';
}