w3c-validation

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Can I use duplicate IDs on multiple <template> fragments?
user_139794640
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3
1
289
w3c-validation xhtml dom html
Why doesn't the W3C RDF validator replace the URI using the full namespace?
user_19834480
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5
1
191
rdf-xml w3c-validation rdf
W3C Validation Failed, Illegal character in path segment: space is not allowed
user_125062530
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2
3
3629
w3c-validation css html
Can tinyMCE editor or Jsoup fix html markup errors?
user_40397500
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2
1
105
tinymce-4 jsoup w3c-validation tinymce
Bad value pagination for attribute role on element nav
user_842010
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5
1
3977
wai-aria w3c-validation w3c html
Isn't "text-overflow: ellipsis" valid CSS?
user_135080
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7
2
857
w3c-validation css
Add form to table rows
user_5086660
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9
3
9260
tablerow w3c-validation forms html
HTML5 Conformance Checker
user_4830620
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25
4
32729
w3c-validation html
What throws Internet Explorer into quirks mode?
user_4780500
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17
4
21728
w3c-validation quirks-mode internet-explorer xhtml css
There is no attribute "allowtransparency"
user_2469630
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38
5
61761
w3c-validation w3c css html
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