Css counters

body {
  counter-reset: section;                    /* On initialise le compteur à 0 */
}

h3::before {
  counter-increment: section;                /* On incrémente le compteur section */
  content: "Section " counter(section) " : "; /* On affiche le compteur */
}

Source: developer.mozilla.org

Counter-style counter css counters

@counter-style circled-alpha {
  system: fixed;
  symbols: Ⓐ Ⓑ Ⓒ Ⓓ Ⓔ Ⓕ Ⓖ Ⓗ Ⓘ Ⓙ Ⓚ Ⓛ Ⓜ Ⓝ Ⓞ Ⓟ Ⓠ Ⓡ Ⓢ Ⓣ Ⓤ Ⓥ Ⓦ Ⓧ Ⓨ Ⓩ;
  suffix: " ";
}

Source: developer.mozilla.org

Similar codes

0 vote192 views1 answer
Mat slider custom color
CSS
1 vote175 views1 answer
Style rule that expands the element to cover any floating content within the element
CSS
3 votes171 views2 answers
Crop image with circle css
CSS
0 vote181 views1 answer
Include css typo3
CSS
0 vote161 views1 answer
How to give a background color strip in html and css
CSS
15 votes186 views3 answers
Image rotate with css
CSS
1 vote197 views1 answer
Css %-px
CSS
0 vote254 views1 answer
Dxxxxxxx
CSS
1 vote160 views1 answer
Select all class in css
CSS
4 votes200 views3 answers
Add space between all html elements flex
CSS