CSS Counter Styles is a module of CSS that lets you define your own counter styles. Reference At-rules @counter-style system additive-symbols negative prefix suffix range pad speak-as fallback Specifications Specification Status Comment CSS Counter Styles Level 3 Candidate Recommendation Initial definition. Browser compatibility Desktop Mobile Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari Basic support No support 33 (33)[1] No support No support No support Feature Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile Basic support No support 33 (33)[1] No support No support No support [1] Gecko does not support images for the symbols descriptor yet. See bug 1024179.