⌧ X in a rectangle box UTF-8 character with hex code 2327

Using HEX code of X in a rectangle box in HTML file

<span> &#x2327; </span>

Using Decimal code of X in a rectangle box in HTML file

<span> &#8999; </span>

Using HEX code of X in a rectangle box in CSS file for content

span { 
    content: '\2327';
}