Number steps, headings or FAQ items automatically โ reorder the HTML and the numbers fix themselves.
Basic numbering
.steps { counter-reset: step; } /* create/reset on the container */
.step::before {
counter-increment: step; /* +1 per item */
content: "Step " counter(step) ": ";
color: #6d6ffb; font-weight: 700;
}Nested (1.1, 1.2, 2.1โฆ)
article { counter-reset: h2; }
h2 { counter-reset: h3; }
h2::before { counter-increment: h2; content: counter(h2) ". "; }
h3::before { counter-increment: h3; content: counter(h2) "." counter(h3) " "; }Styled number badges
.faq-item::before {
content: counter(faq);
counter-increment: faq;
display: inline-grid; place-items: center;
width: 28px; aspect-ratio: 1; border-radius: 50%;
background: #6d6ffb; color: #fff;
}Formats too: counter(step, upper-roman) โ I, II, III. The numbered sections in our Complete Guides could be done exactly this way.