Errors:
Bogus doctype.
Almost standards mode doctype. Expected “<!DOCTYPE html>”.
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
Element “title” not allowed as child of element “head” in this context. (Suppressing further errors from this subtree.)
Bad value “screen,projection” for attribute “media” on element “link”: Deprecated media type “projection”. For guidance, see the Media Types section in the current Media Queries specification.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Element “option” without attribute “label” must not be empty.
Bad value “http://www.gunpolicy.org/images/gpo/charts/1464214852_USA and States Rate of Gun Suicide.png” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.
Bad value “248px” for attribute “height” on element “img”: Expected a digit but saw “p” instead.
Bad value “340px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.
Bad value “http://www.gunpolicy.org/images/gpo/charts/1464214579_Australia Rate of Gun Homicide.PNG” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.
Bad value “http://www.gunpolicy.org/images/gpo/charts/1464215706_Highest 23 Rate of Gun Homicide.png” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.
Bad value “http://www.gunpolicy.org/images/gpo/charts/1464216169_Highest 25 Rate of Civilian Firearm Possession.png” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.
Bad value “http://www.gunpolicy.org/images/gpo/charts/1464217029_Norway Number of Gun Homicides.png” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.
Warnings:
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
The “name” attribute is obsolete. Consider putting an “id” attribute on the nearest container instead.
Empty heading.
United States US