◣ BLACK LOWER LEFT TRIANGLE UTF-8 character with hex code 25E3

Using HEX code of BLACK LOWER LEFT TRIANGLE in HTML file

<span> &#x25E3; </span>

Using Decimal code of BLACK LOWER LEFT TRIANGLE in HTML file

<span> &#9699; </span>

Using HEX code of BLACK LOWER LEFT TRIANGLE in CSS file for content

span { 
    content: '\25e3';
}