Errors:
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”.
Duplicate ID “a”.
Duplicate ID “b”.
Element “style” not allowed as child of element “body” in this context. (Suppressing further errors from this subtree.)
Bad value “banner” for attribute “role” on element “h1”.
Bad value “banner” for attribute “role” on element “a”.
The “width” attribute on the “table” element is obsolete. Use CSS instead.
Table column 3 established by element “td” has no cells beginning in it.
Duplicate ID “currencies”.
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Element “div” not allowed as child of element “h1” in this context. (Suppressing further errors from this subtree.)
Bad value “navigation” for attribute “role” on element “ul”.
The “itemprop” attribute was specified, but the element is not a property of any item.
Warnings:
The first occurrence of ID “a” was here.
The first occurrence of ID “b” was here.
The “navigation” role is unnecessary for element “nav”.
The first occurrence of ID “currencies” was here.
This document appears to be written in English. Consider adding “lang="en"” (or variant) to the “html” start tag.
Consider using the “h1” element as a top-level heading only (all “h1” elements are treated as top-level headings by many screen readers and other tools).
United States US