:root{--black:#303030;--circle-size:55px}html,body{margin:0;padding:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Helvetica,Arial,sans-serif,Apple Color Emoji,Segoe UI Emoji,Segoe UI Symbol}a{color:inherit;text-decoration:none}*{box-sizing:border-box}