Errors:
Start tag “head” seen but an element of the same type was already open.
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
Element “meta” is missing one or more of the following attributes: “charset”, “content”, “http-equiv”, “itemprop”, “name”, “property”.
Bad start tag in “img” in “head”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Stray end tag “noscript”.
Stray end tag “head”.
Start tag “body” seen but an element of the same type was already open.
Duplicate ID “display_menu_1”.
Duplicate ID “display_menu_2”.
Duplicate ID “display_menu_3”.
Duplicate ID “display_menu_4”.
Duplicate ID “display_menu_5”.
Duplicate ID “display_menu_6”.
The “width” attribute on the “table” element is obsolete. Use CSS instead.
The “cellspacing” attribute on the “table” element is obsolete. Use CSS instead.
The “cellpadding” attribute on the “table” element is obsolete. Use CSS instead.
The “align” attribute on the “table” element is obsolete. Use CSS instead.
The “border” attribute on the “table” element is obsolete. Use CSS instead.
The “width” attribute on the “td” element is obsolete. Use CSS instead.
The “valign” attribute on the “td” element is obsolete. Use CSS instead.
Element “img” is missing required attribute “src”.
A “source” element that has a following sibling “source” element or “img” element with a “srcset” attribute must have a “media” attribute and/or “type” attribute.
Stray end tag “source”.
Bad value “true” for attribute “readonly” on element “textarea”.
Element “style” not allowed as child of element “td” in this context. (Suppressing further errors from this subtree.)
Attribute “alt” not allowed on element “a” at this point.
The “font” element is obsolete. Use CSS instead.
Element “div” not allowed as child of element “font” in this context. (Suppressing further errors from this subtree.)
Element “p” not allowed as child of element “h4” in this context. (Suppressing further errors from this subtree.)
Warnings:
The “navigation” role is unnecessary for element “nav”.
The first occurrence of ID “display_menu_1” was here.
The first occurrence of ID “display_menu_2” was here.
The first occurrence of ID “display_menu_3” was here.
The first occurrence of ID “display_menu_4” was here.
The first occurrence of ID “display_menu_5” was here.
The first occurrence of ID “display_menu_6” was here.
The “main” role is unnecessary for element “main”.
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
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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