Boundlessgeo.com 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.
Duplicate ID “Shape”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
No space between attributes.
Element “p” not allowed as child of element “h1” in this context. (Suppressing further errors from this subtree.)
Element “p” not allowed as child of element “h3” in this context. (Suppressing further errors from this subtree.)
Bad value “” for attribute “src” on element “source”: Must be non-empty.
Stray end tag “a”.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Duplicate ID “desktop-layout”.
Duplicate ID “mobile-layout”.
Duplicate ID “copyright”.
Warnings:
The first occurrence of ID “Shape” was here.
The first occurrence of ID “desktop-layout” was here.
The first occurrence of ID “mobile-layout” was here.
The first occurrence of ID “copyright” was here.
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