̊ RING ABOVE UTF-8 character with hex code 030A

Using HEX code of RING ABOVE in HTML file

<span> &#x030A; </span>

Using Decimal code of RING ABOVE in HTML file

<span> &#778; </span>

Using HEX code of RING ABOVE in CSS file for content

span { 
    content: '\030a';
}