Lsst.org W3C HTML Markup Validation
HTML markup errors and warnings
(Rescan now...)
Errors:
Element “tagline” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Element “div” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Saw “<!--” within a comment. Probable cause: Nested comment (not allowed).
Stray end tag “section”.
The “align” attribute on the “img” element is obsolete. Use CSS instead.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Bad value “100px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.
Bad value “auto” for attribute “height” on element “img”: Expected a digit but saw “a” instead.
Bad value “110px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.
Warnings:
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
United States US