Errors:
Almost standards mode doctype. Expected “<!DOCTYPE html>”.
Bad value “Content-Script-Type” for attribute “http-equiv” on element “meta”.
Bad value “Content-Style-Type” for attribute “http-equiv” on element “meta”.
Bad value “PAGE-ENTER” for attribute “http-equiv” on element “meta”.
Attribute “name” not allowed on element “meta” at this point.
Element “meta” is missing one or more of the following attributes: “itemprop”, “property”.
Element “script” must not have attribute “async” unless attribute “src” is also specified or unless attribute “type” is specified with value “module”.
Element “style” not allowed as child of element “form” in this context. (Suppressing further errors from this subtree.)
Start tag “body” seen but an element of the same type was already open.
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Element “div” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Duplicate attribute “class”.
Duplicate ID “gtm_engcomHead_logo”.
Bad element name “gcse:searchbox-only”: Code point “U+003A” is not allowed
Duplicate ID “navToggle”.
No space between attributes.
No “li” element in scope but a “li” end tag seen.
Duplicate ID “gtm_engcomHead_login”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
The “cellspacing” attribute on the “table” element is obsolete. Use CSS instead.
The “cellpadding” attribute on the “table” element is obsolete. Use CSS instead.
The “width” attribute on the “table” element is obsolete. Use CSS instead.
The “border” attribute on the “table” element is obsolete. Use CSS instead.
The “bgcolor” attribute on the “td” element is obsolete. Use CSS instead.
Saw “<?”. Probable cause: Attempt to use an XML processing instruction in HTML. (XML processing instructions are not supported in HTML.)
Self-closing syntax (“/>”) used on a non-void HTML element. Ignoring the slash and treating as a start tag.
Element “t” not allowed as child of element “b” in this context. (Suppressing further errors from this subtree.)
End tag “li” seen, but there were open elements.
Unclosed element “div”.
Bad value “https://res.cloudinary.com/engineering-com/image/fetch/w_375,h_200,f_jpg,q_auto:low,c_fill,g_faces:center/http://www.engineering.com/portals/0/BlogFiles/1_mars cover.PNG” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.
Attribute “webkitallowfullscreen” not allowed on element “iframe” at this point.
Attribute “mozallowfullscreen” not allowed on element “iframe” at this point.
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://res.cloudinary.com/engineering-com/image/fetch/w_375,h_200,f_jpg,q_auto:low,c_fill,g_faces:center/http://www.engineering.com/portals/0/BlogFiles/hyperloop cover.JPG” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.
Bad value “https://res.cloudinary.com/engineering-com/image/fetch/w_375,h_200,f_jpg,q_auto:low,c_fill,g_faces:center/http://www.engineering.com/portals/0/BlogFiles/1_amdahl's law.png” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.
The “align” attribute on the “h3” element is obsolete. Use CSS instead.
The “align” attribute on the “img” element is obsolete. Use CSS instead.
A slash was not immediately followed by “>”.
Attribute “r1:15” not allowed on element “div” at this point.
Attribute “pm” not allowed on element “div” at this point.
Attribute “8” not allowed on element “div” at this point.
Attribute “25” not allowed on element “div” at this point.
Attribute “2017unat” not allowed on element “div” at this point.
Duplicate ID “main_content”.
The “align” attribute on the “div” element is obsolete. Use CSS instead.
Warnings:
The “type” attribute for the “style” element is not needed and should be omitted.
The “type” attribute is unnecessary for JavaScript resources.
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
The first occurrence of ID “gtm_engcomHead_logo” was here.
Element name “gcse:searchbox-only” cannot be represented as XML 1.0.
The first occurrence of ID “navToggle” was here.
The first occurrence of ID “gtm_engcomHead_login” was here.
The “name” attribute is obsolete. Consider putting an “id” attribute on the nearest container instead.
Attribute “r1:15” is not serializable as XML 1.0.
Attribute “8” is not serializable as XML 1.0.
Attribute “25” is not serializable as XML 1.0.
Attribute “2017unat” is not serializable as XML 1.0.
The first occurrence of ID “main_content” was here.
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