➀ DINGBAT CIRCLED SANS-SERIF DIGIT ONE UTF-8 character with hex code 2780

Using HEX code of DINGBAT CIRCLED SANS-SERIF DIGIT ONE in HTML file

<span> &#x2780; </span>

Using Decimal code of DINGBAT CIRCLED SANS-SERIF DIGIT ONE in HTML file

<span> &#10112; </span>

Using HEX code of DINGBAT CIRCLED SANS-SERIF DIGIT ONE in CSS file for content

span { 
    content: '\2780';
}