Androidcentral.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “x-dns-prefetch-control” for attribute “http-equiv” on element “meta”.
Attribute “adonis-marker” not allowed on element “div” at this point.
Duplicate ID “block--281”.
The “align” attribute on the “div” element is obsolete. Use CSS instead.
Attribute “on” not allowed on element “button” at this point.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Warnings:
The “type” attribute is unnecessary for JavaScript resources.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The “complementary” role is unnecessary for element “aside”.
The first occurrence of ID “block--281” was here.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
The “language” attribute on the “script” element is obsolete. You can safely omit it.
Consider adding a “lang” attribute to the “html” start tag to declare the language of this document.
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