◼ BLACK MEDIUM SQUARE UTF-8 character with hex code 25FC

Using HEX code of BLACK MEDIUM SQUARE in HTML file

<span> &#x25FC; </span>

Using Decimal code of BLACK MEDIUM SQUARE in HTML file

<span> &#9724; </span>

Using HEX code of BLACK MEDIUM SQUARE in CSS file for content

span { 
    content: '\25fc';
}