▫ WHITE SMALL SQUARE UTF-8 character with hex code 25AB

Using HEX code of WHITE SMALL SQUARE in HTML file

<span> &#x25AB; </span>

Using Decimal code of WHITE SMALL SQUARE in HTML file

<span> &#9643; </span>

Using HEX code of WHITE SMALL SQUARE in CSS file for content

span { 
    content: '\25ab';
}