Kilotest: Diagnoses of attribute value invalid violation by HTML element 2787 on Cátedra UNESCO Legislación, Sociedad y Patrimonio page

Basics

About the Cátedra UNESCO Legislación, Sociedad y Patrimonio page

• URL: https://catedrapatrimonio.wixsite.com/ugto
• Tested 13 days ago by job auj on 2026-07-07 at 18:07

About HTML element 2787

• Tag name: IFRAME
• Text: [not applicable]
• Start tag: <iframe data-src="https://www.youtube.com/embed/D1rAqMxCP6M?wmode=transparent&amp;autoplay=1&amp;mute=1&amp;theme=dark&amp;controls=1&amp;autohide=1&amp;loop=1&amp;showinfo=0&amp;rel=0&amp;enablejsapi=0&amp;playlist=D1rAqMxCP6M" src="https://www.youtube.com/embed/D1rAqMxCP6M?wmode=transparent&amp;autoplay=1&amp;mute=1&amp;theme=dark&amp;controls=1&amp;autohide=1&amp;loop=1&amp;showinfo=0&amp;rel=0&amp;enablejsapi=0&amp;playlist=D1rAqMxCP6M" height="100%" width="100%" frameborder="0" title="External YouTube" aria-label="External YouTube" data-testid="youtube" allowfullscreen="" allow="autoplay 'src'">
• XPath: [not obtained]
• Bounding box: x = 532, y = 23026, width = 363, height = 246

About the attribute value invalid issue

• Why it matters: Item behaves improperly
• Priority: highest
• Related WCAG standard: 1.3.1

Diagnoses

Here is how rule engines diagnose the attribute value invalid issue for HTML element 2787 of the Cátedra UNESCO Legislación, Sociedad y Patrimonio page.

1. Bad value 100% for attribute height on element iframe: Expected a digit but saw % instead.

   Tool: Html Checker API (World Wide Web Consortium)

2. Bad value 100% for attribute width on element iframe: Expected a digit but saw % instead.

   Tool: Html Checker API (World Wide Web Consortium)