Mtnops.com W3C HTML Markup Validation
HTML markup errors and warnings
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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”.
CSS: “background-attachment”: “default” is not a “background-attachment” value.
CSS: “border”: Missing a semicolon before the property name “-webkit-box-shadow”.
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Element “style” not allowed as child of element “li” in this context. (Suppressing further errors from this subtree.)
Element “style” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Stray end tag “source”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Bad value “100%” for attribute “width” on element “img”: Expected a digit but saw “%” instead.
Bad value “” for attribute “width” on element “img”: The empty string is not a valid non-negative integer.
Bad value “” for attribute “height” on element “img”: The empty string is not a valid non-negative integer.
Element “img” is missing required attribute “src”.
Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
The “type” attribute is unnecessary for JavaScript resources.
The “type” attribute for the “style” element is not needed and should be omitted.
The “complementary” role is unnecessary for element “aside”.
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