Rca.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Start tag “head” seen but an element of the same type was already open.
A document must not include more than one “meta” element with a “http-equiv” attribute whose value is “content-type”.
Bad value “100%” for attribute “width” on element “iframe”: Expected a digit but saw “%” instead.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Duplicate ID “video”.
Element “img” is missing required attribute “src”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Warnings:
The first occurrence of ID “video” was here.
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