🖤 Black heart UTF-8 character with hex code 1F5A4

Using HEX code of Black heart in HTML file

<span> &#x1F5A4; </span>

Using Decimal code of Black heart in HTML file

<span> &#128420; </span>

Using HEX code of Black heart in CSS file for content

span { 
    content: '\1f5a4';
}