Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
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).
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The first occurrence of ID “Outline_Icons” was here.
The first occurrence of ID “Invisible_Shape” was here.
The first occurrence of ID “Outline_Icons_1_” was here.
The first occurrence of ID “New_icons_1_” was here.
This document appears to be written in English. Consider adding “lang="en"” (or variant) to the “html” start tag.
Errors:
Bad value “https://fonts.googleapis.com/css?family=Source+Code+Pro|Source+Sans+Pro:200,400,700” for attribute “href” on element “link”: Illegal character in query: “|” is not allowed.
Attribute “aurelia-app” not allowed on element “body” at this point.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Attribute “ref” not allowed on element “main” at this point.
Attribute “screen-activator.bind” not allowed on element “div” at this point.
Attribute “screen-activated.trigger” not allowed on element “div” at this point.
Attribute “webkitallowfullscreen” not allowed on element “iframe” at this point.
Attribute “mozallowfullscreen” not allowed on element “iframe” at this point.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Duplicate ID “Outline_Icons”.
Duplicate ID “Invisible_Shape”.
Duplicate ID “Outline_Icons_1_”.
Duplicate ID “New_icons_1_”.
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