Mastered.jp W3C HTML Markup Validation
HTML markup errors and warnings
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Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
Attribute “v-bind:class” is not serializable as XML 1.0.
Attribute “v-bind:start-fixed-position” is not serializable as XML 1.0.
Attribute “v-bind:adjack” is not serializable as XML 1.0.
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.
Attribute “v-bind:active” is not serializable as XML 1.0.
Errors:
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
Bad value “Last-Modified” for attribute “http-equiv” on element “meta”.
Attribute “ontouchstart” not allowed on element “div” at this point.
Attribute “v-bind:class” not allowed on element “div” 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.
The “itemprop” attribute was specified, but the element is not a property of any item.
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