Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
The first occurrence of ID “js-opening-hours” was here.
The first occurrence of ID “js-opening-hours-list” was here.
Errors:
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
Bad value “Duplicate of header bar, when scrolling down” for attribute “role” on element “div”.
Bad value “Top level entry points when scrolling down” for attribute “role” on element “nav”.
Duplicate ID “js-opening-hours”.
Duplicate ID “js-opening-hours-list”.
Bad value “Top level entry points” for attribute “role” on element “nav”.
Bad value “Detailed sitemap” for attribute “role” on element “nav”.
Bad value “Openings” for attribute “role” on element “div”.
Bad value “Accessibility” for attribute “role” on element “div”.
Bad value “Overview” for attribute “role” on element “div”.
Bad value “Current exhibition” for attribute “role” on element “div”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Bad value “Upcoming exhibition” for attribute “role” on element “div”.
Bad value “Workshops” for attribute “role” on element “div”.
Bad value “Classes” for attribute “role” on element “div”.
Bad value “Other” for attribute “role” on element “div”.
Bad value “Community” for attribute “role” on element “div”.
Element “li” not allowed as child of element “nav” in this context. (Suppressing further errors from this subtree.)
Stray end tag “ul”.
Bad value “” for attribute “name” on element “button”: Must not be empty.
Start tag “a” seen but an element of the same type was already open.
End tag “a” violates nesting rules.
Cannot recover after last error. Any further errors will be ignored.
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