W3C CSS Validation Service
active 2025-02-28 → 2026-07-05 (UTC)
Activity over time
Daily event counts in the loaded window
Line chart, 493 days from 2025-02-28 to 2026-07-05. Pushes: 52 total, peak 4 in a day. Pull requests: 11 total, peak 2 in a day. Issues: 18 total, peak 3 in a day. Comments: 14 total, peak 1 in a day. Stars: 7 total, peak 1 in a day.
- Pushes
- Pull requests
- Issues
- Comments
- Stars
Stars, PRs, issues and forks are under-captured in the later part of this window. GH Archive progressively stopped capturing non-push events during 2026 — −95% or worse by the end of the window. Every series here except Pushes fades for that reason, so a decline above reflects the archive, not this repository. Pushes stay reliable throughout, so read them, and the contributor counts derived from them, as the real signal. Data health has the measurements.
Top contributors
Pushes, PRs, issues, reviews and comments — stars and forks excluded, so this is contribution rather than popularity
| Contributor | Contributions | Pushes | PRs | Comments |
|---|---|---|---|---|
| ylafon | 64 | 40 | 7 | 6 |
| sideshowbarker | 10 | 10 | 0 | 0 |
| deniak | 6 | 2 | 1 | 1 |
| tenzap | 3 | 0 | 2 | 0 |
| VioletPixel | 2 | 0 | 0 | 2 |
| vivienlacourba | 2 | 0 | 1 | 0 |
| atarax42 | 1 | 0 | 0 | 0 |
| Tyler-H | 1 | 0 | 0 | 1 |
| stefango | 1 | 0 | 0 | 0 |
| jcfranco | 1 | 0 | 0 | 1 |
| samhed | 1 | 0 | 0 | 0 |
| Havunen | 1 | 0 | 0 | 1 |
| edent | 1 | 0 | 0 | 0 |
| 1jj | 1 | 0 | 0 | 1 |
| CecilSWard | 1 | 0 | 0 | 1 |
| computator | 1 | 0 | 0 | 1 |
| hubertgajewski | 1 | 0 | 0 | 0 |
| vrugtehagel | 1 | 0 | 0 | 0 |
| ariyanridoy1092-cell | 1 | 0 | 0 | 0 |
Recent activity
Latest issues, pull requests and releases
- Issue comment#505ylafon2026-06-07 07:42Parse Error min(1 * 1px, 1px)
- Issue#425ylafon2026-05-02 07:32font-optical-sizing isn't a property
- Issue#418ylafon2026-04-19 08:13Possible false validation error "Property overflow-clip-margin doesn't exist"
- Issue comment#4811jj2026-04-18 20:47The validator throws an error when nesting CSS.
- Issue#410ylafon2026-04-13 09:34Unrecognized at-rule "@layer"
- Issue#495stefango2026-03-31 02:15Grammar validation(Pseudo classes) support
- Pull request#493tenzap2026-03-15 08:53
- Issue comment#489ylafon2026-03-11 06:47"not a valid color 3 or 6 hexadecimals numbers" incorrect checker
- Issue#487tenzap2026-03-08 16:51issue with test testsuite/bugs/4469.css
- Pull request#486tenzap2026-03-07 13:05
- Issue#478ylafon2026-03-05 11:58size-adjust
- Issue#478ylafon2026-03-05 11:58size-adjust
- Issue#436ylafon2026-03-05 09:46oklch() function is not recognized
- Pull request#483ylafon2026-03-05 09:35
- Issue#478edent2026-02-13 14:55size-adjust
- Issue comment#426Havunen2026-02-12 07:32Is this project dead? Why are we stuck with modules level 3?
- Issue#472samhed2025-12-11 22:16CSS path() gives error when used for clip-path
- Issue#471atarax422025-12-11 08:34Property `clip-path:polygon()` with reference box causes warning
- Issue comment#464ylafon2025-12-09 09:28CSS property `zoom` causes warning.
- Issue#434ylafon2025-11-24 07:46`color-mix` causes value error
- Issue#434ylafon2025-11-24 07:46`color-mix` causes value error
- Issue#434ylafon2025-11-24 07:45`color-mix` causes value error
- Issue#466hubertgajewski2025-11-18 10:50Custom protocol reported as invalid
- Issue comment#434computator2025-11-17 09:40`color-mix` causes value error
- Issue comment#410jcfranco2025-10-03 17:59Unrecognized at-rule "@layer"
Totals cover only the window loaded into ClickHouse and count events, not GitHub's lifetime totals — 7 stars here means stars gained during the window, not the repo's star count.