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New posts in w3c-validation
CSS Error: Expected ':' but found '/'. Declaration dropped. Line: 0
Jun 18, 2022
html
css
firefox
w3c
w3c-validation
XHTML Strict: br tag inside p tag
Dec 12, 2018
html
css
w3c-validation
Bad value for attribute action on element form: Must be non-empty
Jul 29, 2022
php
html
w3c-validation
Invalid role attribute value for section element?
Nov 03, 2022
html
w3c-validation
role
wai-aria
Why does http-equiv="X-UA-Compatible" content="IE=edge,chrome=1" is not validated in W3C Validator? [duplicate]
Sep 07, 2019
html
internet-explorer
w3c-validation
x-ua-compatible
What DOCTYPE should I target today?
Nov 11, 2022
asp.net
html
asp.net-ajax
doctype
w3c-validation
nav element with no heading -- document outline
Oct 21, 2022
html
w3c-validation
Should I remove trailing slashes in meta tags?
Aug 12, 2022
html
meta-tags
w3c-validation
html4
Closing tag with ID property
Oct 26, 2022
html
closures
w3c
doctype
w3c-validation
W3C validator says 'feed does not validate' 'url must be a full URL'... whats wrong with it?
Oct 15, 2022
url
rss
w3c
w3c-validation
rfc
How widely supported is the iframe attribute "allowfullscreen"?
Oct 15, 2022
html
iframe
w3c-validation
Offline html5 validator
Oct 17, 2022
html
validation
w3c-validation
"An img element must have an alt attribute, except under certain conditions." What conditions?
Nov 03, 2022
html
w3c-validation
Element style not allowed as child of element body in this context (<style scoped> not validating)
Sep 04, 2019
html
css
w3c-validation
Stray end tag img
Nov 09, 2022
html
user-interface
markup
w3c-validation
W3C validation for complete site [closed]
Sep 25, 2022
w3c-validation
Why do major websites not pass W3C validation properly? [closed]
Sep 19, 2022
html
dom
w3c
w3c-validation
W3C validation says h1 in article is invalid
Oct 06, 2017
html
w3c-validation
HTML 5 - Early Adoption Where Possible - Good or Bad?
Sep 22, 2022
html
cross-browser
w3c-validation
Is there any single tool that runs JSLint, W3C validator (both CSS3 and HTML5) on files in a given directory? [closed]
Oct 15, 2022
javascript
html
css
w3c-validation
jslint
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