Angsarap.net W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
Element “div” is missing one or more of the following attributes: “role”.
The “align” attribute on the “div” element is obsolete. Use CSS instead.
The “center” element is obsolete. Use CSS instead.
Bad value “cc:attributionURL” for attribute “rel” on element “a”: The string “cc:attributionURL” is not a registered keyword.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Element “script” must not have attribute “charset” unless attribute “src” is also specified.
Duplicate attribute “defer”.
Warnings:
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
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