Errors:
The “charset” attribute on the “link” element is obsolete. Use an HTTP Content-Type header on the linked resource instead.
Duplicate attribute “id”.
Attribute “ng-app” not allowed on element “body” at this point.
Attribute “disable-right-click” not allowed on element “div” at this point.
Duplicate attribute “class”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Duplicate ID “Layer_2”.
Duplicate ID “symbols_”.
Attribute “addthis:url” not allowed on element “a” at this point.
Attribute “title” not allowed on element “svg” at this point.
Attribute “alt” not allowed on element “svg” at this point.
Bad value “https://s7.addthis.com/js/250/addthis_widget.js##username=xa-4ce13f6827070e16” for attribute “src” on element “script”: Illegal character in fragment: “#” is not allowed.
Attribute “alt” not allowed on element “a” at this point.
Warnings:
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The first occurrence of ID “Layer_2” was here.
The first occurrence of ID “symbols_” was here.
Attribute “addthis:url” is not serializable as XML 1.0.
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).
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