Atcom.gr W3C HTML Markup Validation
HTML markup errors and warnings
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Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
Empty heading.
The “type” attribute is unnecessary for JavaScript resources.
This document appears to be written in English. Consider adding “lang="en"” (or variant) to the “html” start tag.
Errors:
Bad start tag in “img” in “head”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Stray end tag “noscript”.
Stray end tag “head”.
Start tag “body” seen but an element of the same type was already open.
Bad value “” for attribute “src” on element “iframe”: Must be non-empty.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Element “img” is missing required attribute “src”.
The element “button” must not appear as a descendant of the “a” element.
The value of the “for” attribute of the “label” element must be the ID of a non-hidden form control.
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