DOWN-POINTING TRIANGLE WITH RIGHT HALF BLACKUTF-8 Character/Symbol

Using HEX code of DOWN-POINTING TRIANGLE WITH RIGHT HALF BLACK in HTML file

<span> &#x29E9; </span>

Using Decimal code of DOWN-POINTING TRIANGLE WITH RIGHT HALF BLACK in HTML file

<span> &#10729; </span>

Using HEX code of DOWN-POINTING TRIANGLE WITH RIGHT HALF BLACK in CSS file for content

span { 
    content: '\29e9';
}