Warnings:
The “type” attribute for the “style” element is not needed and should be omitted.
The “type” attribute is unnecessary for JavaScript resources.
The “navigation” role is unnecessary for element “nav”.
The first occurrence of ID “signIn” was here.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The first occurrence of ID “” was here.
Document uses the Unicode Private Use Area(s), which should not be used in publicly exchanged documents. (Charmod C073)
Errors:
A “charset” attribute on a “meta” element found after the first 1024 bytes.
Bad value “true” for attribute “async” on element “script”.
Element “script” must not have attribute “async” unless attribute “src” is also specified or unless attribute “type” is specified with value “module”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Duplicate ID “signIn”.
Element “contribution” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Start tag “a” seen but an element of the same type was already open.
Element “slider” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
The element “iframe” must not appear as a descendant of the “a” element.
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
No space between attributes.
The string following “&” was interpreted as a character reference. (“&” probably should have been escaped as “&”.)
Bad value “” for attribute “id” on element “a”: An ID must not be the empty string.
Duplicate ID “”.
Element “style” not allowed as child of element “body” in this context. (Suppressing further errors from this subtree.)
CSS: “border-radius”: Too many values or values are not recognized.
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