Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The “complementary” role is unnecessary for element “aside”.
The “navigation” role is unnecessary for element “nav”.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
Errors:
Bad value “100%” for attribute “width” on element “iframe”: Expected a digit but saw “%” instead.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Bad value “12.05.2017” for attribute “datetime” on element “time”: The literal did not satisfy the time-datetime format.
Bad value “11.13.2017” for attribute “datetime” on element “time”: The literal did not satisfy the time-datetime format.
Bad value “09.20.2017” for attribute “datetime” on element “time”: The literal did not satisfy the time-datetime format.
Bad value “07.18.2017” for attribute “datetime” on element “time”: The literal did not satisfy the time-datetime format.
Bad value “07.17.2017” for attribute “datetime” on element “time”: The literal did not satisfy the time-datetime format.
Bad value “05.21.2017” for attribute “datetime” on element “time”: The literal did not satisfy the time-datetime format.
Bad value “05.14.2017” for attribute “datetime” on element “time”: The literal did not satisfy the time-datetime format.
Bad value “05.13.2017” for attribute “datetime” on element “time”: The literal did not satisfy the time-datetime format.
Bad value “04.05.2017” for attribute “datetime” on element “time”: The literal did not satisfy the time-datetime format.
Bad value “03.30.2017” for attribute “datetime” on element “time”: The literal did not satisfy the time-datetime format.
Bad value “03.28.2017” for attribute “datetime” on element “time”: The literal did not satisfy the time-datetime format.
Bad value “03.21.2017” for attribute “datetime” on element “time”: The literal did not satisfy the time-datetime format.
Bad value “01.04.2017” for attribute “datetime” on element “time”: The literal did not satisfy the time-datetime format.
Bad value “12.26.2016” for attribute “datetime” on element “time”: The literal did not satisfy the time-datetime format.
Bad value “12.14.2016” for attribute “datetime” on element “time”: The literal did not satisfy the time-datetime format.
Bad value “11.12.2016” for attribute “datetime” on element “time”: The literal did not satisfy the time-datetime format.
Bad value “10.03.2016” for attribute “datetime” on element “time”: The literal did not satisfy the time-datetime format.
Bad value “08.28.2016” for attribute “datetime” on element “time”: The literal did not satisfy the time-datetime format.
Bad value “08.24.2016” for attribute “datetime” on element “time”: The literal did not satisfy the time-datetime format.
Malformed byte sequence: “d0”.
Bad value “/images/article/4/1877_The developer of the neuroprosthesis_small_img_s.jpg” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.
Element “noindex” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
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