Kobojo.com W3C HTML Markup Validation
HTML markup errors and warnings
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Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
The “type” attribute is unnecessary for JavaScript resources.
The “button” role is unnecessary for element “button”.
The first occurrence of ID “Calque_1” was here.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
Empty heading.
Attribute “src” without an explicit value seen. The attribute may be dropped by IE7.
The first occurrence of ID “social-networks” was here.
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:
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
A document must not include more than one “meta” element with its “name” attribute set to the value “description”.
Duplicate ID “Calque_1”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Attribute value missing.
Bad value “” for attribute “src” on element “img”: Must be non-empty.
Duplicate ID “social-networks”.
Venezuela VE