Ostrava.cz W3C HTML Markup Validation
HTML markup errors and warnings
(Rescan now...)
Errors:
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
Element “a” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Element “dl” is missing a required instance of child element “dd”.
Element “tbody” not allowed as child of element “table” in this context. (Suppressing further errors from this subtree.)
The “valign” attribute on the “td” element is obsolete. Use CSS instead.
A numeric character reference expanded to carriage return.
End tag “p” implied, but there were open elements.
Unclosed element “span”.
Stray end tag “span”.
No “p” element in scope but a “p” end tag seen.
Table cell spans past the end of its row group established by a “tbody” element; clipped to the end of the row group.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
Empty heading.
This document appears to be written in Czech. Consider adding “lang="cs"” (or variant) to the “html” start tag.
Czech Republic CZ