Browsera.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Obsolete 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”.
Duplicate ID “screenshotTitleText”.
Duplicate ID “ie6tab”.
Duplicate ID “ie7tab”.
Duplicate ID “ie8tab”.
Duplicate ID “ff2tab”.
Duplicate ID “ff3tab”.
Duplicate ID “ff35tab”.
Duplicate ID “safari32tab”.
Duplicate ID “safari4tab”.
Attribute “alt” not allowed on element “a” at this point.
Warnings:
The first occurrence of ID “screenshotTitleText” was here.
The first occurrence of ID “ie6tab” was here.
The first occurrence of ID “ie7tab” was here.
The first occurrence of ID “ie8tab” was here.
The first occurrence of ID “ff2tab” was here.
The first occurrence of ID “ff3tab” was here.
The first occurrence of ID “ff35tab” was here.
The first occurrence of ID “safari32tab” was here.
The first occurrence of ID “safari4tab” was here.
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