Mtmad.es 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The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
Errors:
A document must not include both a “meta” element with an “http-equiv” attribute whose value is “content-type”, and a “meta” element with a “charset” attribute.
Element “meta” is missing one or more of the following attributes: “content”, “property”.
CSS: “letter-spacing”: Property “letter-spacing” doesn't exist in “CSS Level 3 + SVG” but exists in “[css1, css2, css21, css3]”.
CSS: “word-spacing”: Property “word-spacing” doesn't exist in “CSS Level 3 + SVG” but exists in “[css1, css2, css21, css3]”.
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”.
Element “script” must not have attribute “defer” unless attribute “src” is also specified.
Stray end tag “head”.
Start tag “body” seen but an element of the same type was already open.
Cannot recover after last error. Any further errors will be ignored.
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