▶ BLACK RIGHT-POINTING TRIANGLE UTF-8 character with hex code 25B6

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

<span> &#x25B6; </span>

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

<span> &#9654; </span>

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

span { 
    content: '\25b6';
}