🔐 Lock with key UTF-8 character with hex code 1F510

Using HEX code of Lock with key in HTML file

<span> &#x1F510; </span>

Using Decimal code of Lock with key in HTML file

<span> &#128272; </span>

Using HEX code of Lock with key in CSS file for content

span { 
    content: '\1f510';
}