̂ CIRCUMFLEX ACCENT UTF-8 character with hex code 0302

Using HEX code of CIRCUMFLEX ACCENT in HTML file

<span> &#x0302; </span>

Using Decimal code of CIRCUMFLEX ACCENT in HTML file

<span> &#770; </span>

Using HEX code of CIRCUMFLEX ACCENT in CSS file for content

span { 
    content: '\0302';
}