Conserveturtles.org W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
The “center” element is obsolete. Use CSS instead.
Attribute “fb-xfbml-state” not allowed on element “div” at this point.
Attribute “fb-iframe-plugin-query” not allowed on element “div” at this point.
Bad value “1000px” for attribute “width” on element “iframe”: Expected a digit but saw “p” instead.
Bad value “625px” for attribute “height” on element “iframe”: Expected a digit but saw “p” instead.
Bad value “true” for attribute “allowfullscreen” on element “iframe”.
Attribute “kwframeid” not allowed on element “iframe” at this point.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
The “allowtransparency” attribute on the “iframe” element is obsolete. Use CSS instead.
The “scrolling” attribute on the “iframe” element is obsolete. Use CSS instead.
Warnings:
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
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