Errors:
The “font” element is obsolete. Use CSS instead.
Element “option” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Element “option” without attribute “label” must not be empty.
Bad value “” for attribute “target” on element “a”: Browsing context name must be at least one character long.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Duplicate ID “collapse__”.
Bad value “92%” for attribute “width” on element “iframe”: Expected a digit but saw “%” instead.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
The “scrolling” attribute on the “iframe” element is obsolete. Use CSS instead.
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
End tag “br”.
Bad value “https://www.facebook.com/sharer/sharer.php?u=[url]” for attribute “href” on element “a”: Illegal character in query: “[” is not allowed.
Bad value “https://plus.google.com/share?url=[url]” for attribute “href” on element “a”: Illegal character in query: “[” is not allowed.
Bad value “https://www.linkedin.com/shareArticle?mini=true&url=[url]&title=[title]&summary=&source=” for attribute “href” on element “a”: Illegal character in query: “[” is not allowed.
Bad value “https://twitter.com/home?status=[url]” for attribute “href” on element “a”: Illegal character in query: “[” is not allowed.
The “aria-labelledby” attribute must point to an element in the same document.
Warnings:
Empty heading.
The first occurrence of ID “collapse__” was here.
Consider using the “h1” element as a top-level heading only (all “h1” elements are treated as top-level headings by many screen readers and other tools).
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