Maddevs.io 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 its “name” attribute set to the value “description”.
No space between attributes.
Quote “"” in attribute name. Probable cause: Matching quote missing somewhere earlier.
Bad value “video/webm; codecs=” for attribute “type” on element “source”: Parameter value missing.
Attribute “vp8,” not allowed on element “source” at this point.
Attribute “vorbis""” not allowed on element “source” at this point.
Element “slick” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Start tag “a” seen but an element of the same type was already open.
Stray end tag “a”.
Bad value “tel:+996 703 31 06 61” for attribute “href” on element “a”: Illegal character in scheme data: space is not allowed.
Warnings:
Attribute “vp8,” is not serializable as XML 1.0.
Attribute “vorbis""” is not serializable as XML 1.0.
This document appears to be written in English. Consider adding “lang="en"” (or variant) to the “html” start tag.
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