w3c-validation

w3c-validation

W3C Error: X-UA-Compatible HTTP header must have the value IE=edge, was IE=Edge,chrome=1

<img> after <h1> does not validate as HTML 4.01 Strict

Is W3C validator is required?

W3C validator: “Element head is missing a required instance of child element title”

Microdata in XHTML 1.1: there is no attribute "itemprop"

Schema itemprop attributes are marked as invalid, how to fix it?

Attribute autocorrect not allowed on element input at this point

W3C validation error on script "auto&null"

schema.org VideoObject → itemprop will not validate with W3C Validator

How can i solve this "The name attribute is obsolete. Consider putting an id attribute on the nearest container instead."

validation error "id" must be a single token

Unable to pass W3C Validation

W3C Validation Error: document type does not allow "strong"

document type does not allow element "div" here; missing one of "object", "applet", "map", "iframe", "button", "ins", "del" start-tag

document type does not allow element "div" here; assuming missing "object" start-tag

W3C validation - end tag for "meta" omitted, but OMITTAG NO was specified

W3c Validator for php

Line 149, Column 31: there is no attribute "WIDTH"

Error validating HTML through w3c validator

CSS3 box-shadow property doesn't validate?

W3C validation for complete site [closed]

Microdata itemprop causes W3C validator error

validation error - Google +1 button

How to get rid of this w3 validation error?

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