CSS Box Sizing Module Level 4 publication history
| Date | Status |
|---|---|
| Working Draft | |
| Working Draft | |
| First Public Working Draft |
| CARVIEW |
Select Language
HTTP/2 301
date: Fri, 10 Oct 2025 18:36:30 GMT
content-type: text/html
content-length: 167
location: https://www.w3.org/standards/history/css-sizing-4/
cache-control: max-age=3600
expires: Fri, 10 Oct 2025 19:36:30 GMT
set-cookie: __cf_bm=VxwHd_AQAZbX60UVFSXA7WzI8w1g5n7m_2LSg.4O03I-1760121390-1.0.1.1-vsKIN_SAJq_RSp.wKYyyz531iut62hiti22eho3F2Z3EQMbv8wotDm.GTLZ3tnH7hhq3f6KKYi4pZALVNQoEfWCJ2gt4XAcxPv1GwKCbEXg; path=/; expires=Fri, 10-Oct-25 19:06:30 GMT; domain=.w3.org; HttpOnly; Secure; SameSite=None
vary: Accept-Encoding
server: cloudflare
cf-ray: 98c8393fabf7a45e-BLR
alt-svc: h3=":443"; ma=86400
HTTP/2 200
date: Fri, 10 Oct 2025 18:36:30 GMT
content-type: text/html; charset=UTF-8
content-encoding: gzip
cache-control: max-age=0, public, s-maxage=3600
access-control-allow-origin: *
last-modified: Fri, 10 Oct 2025 16:05:28 GMT
x-backend: sf-main
x-request-id: 98c8393fefbd5917
strict-transport-security: max-age=15552000; includeSubdomains; preload
content-security-policy: frame-ancestors 'self' https://cms.w3.org/ https://cms-dev.w3.org/; upgrade-insecure-requests
cf-cache-status: EXPIRED
vary: Accept-Encoding
server: cloudflare
cf-ray: 98c8393fefbd5917-BLR
alt-svc: h3=":443"; ma=86400
CSS Box Sizing Module Level 4 publication history | Standards | W3C
Skip to content
We have a new logo! Learn more.