Sac-cas.ch W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Almost standards mode doctype. Expected “<!DOCTYPE html>”.
Attribute “alt” not allowed on element “input” at this point.
Element “input” is missing required attribute “alt”.
No “p” element in scope but a “p” end tag seen.
Duplicate ID “trenner”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Duplicate attribute “class”.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Malformed byte sequence: “c3”.
Duplicate ID “footerNavigation”.
Element “ul” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Warnings:
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
The first occurrence of ID “trenner” was here.
The first occurrence of ID “footerNavigation” was here.
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