Pilotflyingj.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Element “script” must not have attribute “charset” unless attribute “src” is also specified.
A “charset” attribute on a “meta” element found after the first 1024 bytes.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Element “img” is missing required attribute “src”.
Bad value “” for attribute “id” on element “div”: An ID must not be the empty string.
Bad value “” for attribute “srcset” on element “source”: Must contain one or more image candidate strings.
Bad value “” for attribute “srcset” on element “img”: Must contain one or more image candidate strings.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Attribute “icon” not allowed on element “img” at this point.
“=” in an unquoted attribute value. Probable causes: Attributes running together or a URL query string in an unquoted attribute value.
Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
The “navigation” role is unnecessary for element “nav”.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
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