◤ BLACK UPPER LEFT TRIANGLE UTF-8 character with hex code 25E4

Using HEX code of BLACK UPPER LEFT TRIANGLE in HTML file

<span> &#x25E4; </span>

Using Decimal code of BLACK UPPER LEFT TRIANGLE in HTML file

<span> &#9700; </span>

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

span { 
    content: '\25e4';
}