⟄ OPEN SUPERSET UTF-8 character with hex code 27C4

Using HEX code of OPEN SUPERSET in HTML file

<span> &#x27C4; </span>

Using Decimal code of OPEN SUPERSET in HTML file

<span> &#10180; </span>

Using HEX code of OPEN SUPERSET in CSS file for content

span { 
    content: '\27c4';
}