Errors:
A document must not include more than one “meta” element with a “charset” attribute.
Duplicate ID “navigation_arrow”.
Attribute “alt” not allowed on element “a” at this point.
Attribute “display” not allowed on element “img” 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 “display” not allowed on element “a” at this point.
Attribute “width” not allowed on element “div” at this point.
Bad value “100px” for attribute “height” on element “iframe”: Expected a digit but saw “p” instead.
Bad value “50%” for attribute “width” on element “iframe”: Expected a digit but saw “%” instead.
The “allowtransparency” attribute on the “iframe” element is obsolete. Use CSS instead.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
The “scrolling” attribute on the “iframe” element is obsolete. Use CSS instead.
Bad value “https://fonts.googleapis.com/css?family=Open Sans” for attribute “href” on element “link”: Illegal character in query: space is not allowed.
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Duplicate ID “menuElem”.
Bad value “131px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.
Warnings:
The first occurrence of ID “navigation_arrow” was here.
The first occurrence of ID “menuElem” was here.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
This document appears to be written in English. Consider adding “lang="en"” (or variant) to the “html” start tag.
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