Educaplus.org W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
A document must not include more than one “meta” element with a “charset” attribute.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Attribute “href” not allowed on element “span” at this point.
The “align” attribute on the “div” element is obsolete. Use CSS instead.
Bad value “mailto:?subject={title}&body={url}” for attribute “href” on element “a”: Illegal character in query: “{” is not allowed.
Bad value “https://www.facebook.com/sharer/sharer.php?u={url}” for attribute “href” on element “a”: Illegal character in query: “{” is not allowed.
Bad value “http://tumblr.com/share?s=&v=3&t={title}&u={url}” for attribute “href” on element “a”: Illegal character in query: “{” is not allowed.
Bad value “http://twitter.com/home?status={title}%20{url}” for attribute “href” on element “a”: Illegal character in query: “{” is not allowed.
Duplicate ID “Layer_1”.
Bad value “http://www.reddit.com/submit?url={url}” for attribute “href” on element “a”: Illegal character in query: “{” is not allowed.
Bad value “https://plus.google.com/share?url={title}%20{url}” for attribute “href” on element “a”: Illegal character in query: “{” is not allowed.
Warnings:
The “navigation” role is unnecessary for element “nav”.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
The first occurrence of ID “Layer_1” was here.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
This document appears to be written in Spanish. Consider adding “lang="es"” (or variant) to the “html” start tag.
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