Errors:
Almost standards mode doctype. Expected “<!DOCTYPE html>”.
Bad value “https://www.w3.org/1999/xhtml” for the attribute “xmlns” (only “http://www.w3.org/1999/xhtml” permitted here).
Duplicate ID “nav-faqs-level3”.
Duplicate ID “nav-leadership-level2”.
Duplicate ID “section-leadership-level3”.
Duplicate ID “nav-board-of-directors-level3”.
Duplicate ID “nav-our-policies-level3”.
Duplicate ID “nav-faqs-level2”.
Duplicate ID “nav-2018-level3”.
Duplicate ID “nav-2017-level3”.
Duplicate ID “nav-2016-level3”.
Duplicate ID “nav-2015-level3”.
Duplicate ID “nav-2014-level3”.
Duplicate ID “nav-2013-level3”.
Duplicate ID “nav-2012-level3”.
Duplicate ID “nav-2011-level3”.
Duplicate ID “nav-archive-level3”.
Duplicate ID “nav-2010-level3”.
Duplicate ID “nav-contact-level2”.
Bad value “/~/media/Images/A/ArcelorMittal/Banners/homepage/taranto_credit Shutterstock_120.jpg?h=44&la=en&w=120” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.
Bad value “/~/media/Images/A/ArcelorMittal/Banners/homepage/Leadenhall building120 x 49.jpg?h=49&la=en&w=120” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.
Bad value “/~/media/Images/A/ArcelorMittal/Banners/homepage/taranto_credit Shutterstock.jpg?h=360&la=en&w=980” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.
Bad value “/~/media/Images/A/ArcelorMittal/Banners/leadenhall building 980 x 360.jpg?h=360&la=en&w=980” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.
Bad value “/~/media/Images/A/ArcelorMittal/Banners/ArcelorMittal Health and Safety Day 2018 - banner.jpg?h=360&la=en&w=980” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.
Duplicate ID “Homepage”.
Warnings:
Attribute “xmlns” is not serializable as XML 1.0.
The “language” attribute on the “script” element is obsolete. You can safely omit it.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
The first occurrence of ID “nav-faqs-level3” was here.
The first occurrence of ID “nav-leadership-level2” was here.
The first occurrence of ID “section-leadership-level3” was here.
The first occurrence of ID “nav-board-of-directors-level3” was here.
The first occurrence of ID “nav-our-policies-level3” was here.
The first occurrence of ID “nav-faqs-level2” was here.
The first occurrence of ID “nav-2018-level3” was here.
The first occurrence of ID “nav-2017-level3” was here.
The first occurrence of ID “nav-2016-level3” was here.
The first occurrence of ID “nav-2015-level3” was here.
The first occurrence of ID “nav-2014-level3” was here.
The first occurrence of ID “nav-2013-level3” was here.
The first occurrence of ID “nav-2012-level3” was here.
The first occurrence of ID “nav-2011-level3” was here.
The first occurrence of ID “nav-archive-level3” was here.
The first occurrence of ID “nav-2010-level3” was here.
The first occurrence of ID “nav-contact-level2” was here.
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
Empty heading.
The first occurrence of ID “Homepage” was here.
Belgium BE