Youngwriters.co.uk W3C HTML Markup Validation
HTML markup errors and warnings
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Warnings:
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
The “name” attribute is obsolete. Consider putting an “id” attribute on the nearest container instead.
The “date” input type is not supported in all browsers. Please be sure to test, and consider using a polyfill.
This document appears to be written in English. Consider adding “lang="en"” (or variant) to the “html” start tag.
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).
Errors:
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Bad value “” for attribute “name” on element “input”: Must not be empty.
The element “button” must not appear as a descendant of the “a” element.
Self-closing syntax (“/>”) used on a non-void HTML element. Ignoring the slash and treating as a start tag.
Bad value “100%” for attribute “width” on element “iframe”: Expected a digit but saw “%” instead.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Stray end tag “div”.
Duplicate attribute “class”.
Stray end tag “a”.
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