Mope.io W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Start tag “head” seen but an element of the same type was already open.
Bad value “350px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.
Bad value “99px” for attribute “height” on element “img”: Expected a digit but saw “p” instead.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Bad value “30/” for attribute “height” on element “img”: Expected a digit but saw “/” instead.
The element “button” must not appear as a descendant of the “a” element.
Bad value “35/” for attribute “height” on element “img”: Expected a digit but saw “/” instead.
Bad value “auto” for attribute “height” on element “img”: Expected a digit but saw “a” instead.
Bad value “60px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.
Bad value “90px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.
Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
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