Errors:
Bad value “//fonts.googleapis.com/css?family=Roboto:300,400,400italic,500,500italic,700,700italic|Roboto+Mono:400,500,700|Material+Icons” for attribute “href” on element “link”: Illegal character in query: “|” is not allowed.
Attribute “track-type” not allowed on element “a” at this point.
Attribute “track-name” not allowed on element “a” at this point.
Attribute “search-placeholder” not allowed on element “form” at this point.
Attribute “track-metadata-position” not allowed on element “a” at this point.
No space between attributes.
Attribute “track-type” not allowed on element “span” at this point.
Attribute “track-name” not allowed on element “span” at this point.
Attribute “track-metadata-position” not allowed on element “span” 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 “track-type” not allowed on element “select” at this point.
Attribute “track-name” not allowed on element “select” at this point.
Attribute “track-type” not allowed on element “option” at this point.
Attribute “track-name” not allowed on element “option” at this point.
Attribute “track-metadata-original-language” not allowed on element “option” at this point.
Attribute “track-metadata-selected-language” not allowed on element “option” at this point.
Warnings:
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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