Contino.io W3C HTML Markup Validation
HTML markup errors and warnings
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Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
Empty heading.
Errors:
A document must not include both a “meta” element with an “http-equiv” attribute whose value is “content-type”, and a “meta” element with a “charset” attribute.
Stray end tag “hr”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Bad value “mailto: london@contino.io” for attribute “href” on element “a”: Illegal character in scheme data: space is not allowed.
Bad value “mailto: newyork@contino.io” for attribute “href” on element “a”: Illegal character in scheme data: space is not allowed.
Bad value “mailto: atlanta@contino.io” for attribute “href” on element “a”: Illegal character in scheme data: space is not allowed.
Bad value “mailto: melbourne@contino.io” for attribute “href” on element “a”: Illegal character in scheme data: space is not allowed.
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