CSS content
The content property inserts generated content. It is most often used with ::before and ::after, and it can insert text, counters, images or attribute values.
Syntax
content: normal;
content: "New";
content: attr(data-label);
content: counter(section);
Text example
.badge::before { content: "New"; }
Counter example
ol { counter-reset: step; }
li::before {
counter-increment: step;
content: counter(step) ". ";
}
Common mistake
content does not insert meaningful document text for accessibility or SEO. Use HTML for real content and generated content for decoration, labels or repeated visual markers.