Ѹ CAPITAL LETTER UK UTF-8 character with hex code 0478

Using HEX code of CAPITAL LETTER UK in HTML file

<span> &#x0478; </span>

Using Decimal code of CAPITAL LETTER UK in HTML file

<span> &#1144; </span>

Using HEX code of CAPITAL LETTER UK in CSS file for content

span { 
    content: '\0478';
}