Errors:
Bad value “https://www.w3.org/1999/xhtml” for the attribute “xmlns” (only “http://www.w3.org/1999/xhtml” permitted here).
A “link” element with a “sizes” attribute must have a “rel” attribute that contains the value “icon” or the value “apple-touch-icon”.
The “allowtransparency” attribute on the “iframe” element is obsolete.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The “frameborder” attribute on the “iframe” element is obsolete.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The “scrolling” attribute on the “iframe” element is obsolete.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.
Element “p” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
The “align” attribute on the “p” element is obsolete. Use CSS instead.
Duplicate ID “nav-tay-level4”.
Duplicate ID “nav-m250-turboshaft-level4”.
Duplicate ID “nav-cts800-level4”.
Duplicate ID “nav-ae-1107c-level4”.
Duplicate ID “nav-ae-3007-level4”.
Duplicate ID “nav-br710-level4”.
Duplicate ID “nav-m250-turboprop-level4”.
Duplicate ID “nav-adour-level4”.
Duplicate ID “nav-services-level3”.
Duplicate ID “nav-product-finder-level3”.
Duplicate ID “nav-defence-aerospace-level2”.
Duplicate ID “nav-publications-level3”.
Duplicate ID “nav-contacts-level3”.
Duplicate ID “nav-yr-2018-level4”.
Duplicate ID “nav-yr-2017-level4”.
Duplicate ID “nav-yr-2016-level4”.
Duplicate ID “nav-yr-2015-level4”.
Duplicate ID “nav-yr-2014-level4”.
Duplicate ID “nav-yr-2013-level4”.
Duplicate ID “nav-yr-2012-level4”.
Duplicate ID “nav-news-level3”.
Duplicate ID “section-news-level4”.
Duplicate ID “nav-contact-us-level3”.
Duplicate ID “nav-home-level3”.
Duplicate ID “nav-products-and-services-level3”.
Duplicate ID “section-products-and-services-level4”.
Duplicate ID “nav-civil-aerospace-level4”.
Duplicate ID “nav-power-systems-level4”.
Duplicate ID “nav-marine-level4”.
Duplicate ID “nav-civil-nuclear-level4”.
Duplicate ID “nav-discover-level3”.
Duplicate ID “nav-careers-level3”.
Duplicate ID “nav-partners-in-progress-level3”.
Duplicate ID “section-partners-in-progress-level4”.
Duplicate ID “nav-manufacturing-and-supply-chain-level4”.
Duplicate ID “nav-sustainability-level3”.
Element “div” not allowed as child of element “button” in this context. (Suppressing further errors from this subtree.)
Duplicate ID “searchTextboxContainer”.
Duplicate ID “searchTextbox”.
Duplicate ID “SearchButtonContainer”.
Bad value “/~/media/Images/R/Rolls-Royce/Stories/2018/Landing page images/firstflight-7000-thumb.jpg” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.
Bad value “/~/media/Images/R/Rolls-Royce/Stories/2018/Landing page images/Copy of microgrid-signpost-new.jpg” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.
Bad value “/~/media/Images/R/Rolls-Royce/content-images/marine/discover/landing-images/Copy of swarm-robots-signpost.jpg” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.
Warnings:
Attribute “xmlns” is not serializable as XML 1.0.
The “language” attribute on the “script” element is obsolete. You can safely omit it.
Consider avoiding viewport values that prevent users from resizing documents.
The first occurrence of ID “nav-tay-level4” was here.
The first occurrence of ID “nav-m250-turboshaft-level4” was here.
The first occurrence of ID “nav-cts800-level4” was here.
The first occurrence of ID “nav-ae-1107c-level4” was here.
The first occurrence of ID “nav-ae-3007-level4” was here.
The first occurrence of ID “nav-br710-level4” was here.
The first occurrence of ID “nav-m250-turboprop-level4” was here.
The first occurrence of ID “nav-adour-level4” was here.
The first occurrence of ID “nav-services-level3” was here.
The first occurrence of ID “nav-product-finder-level3” was here.
The first occurrence of ID “nav-defence-aerospace-level2” was here.
The first occurrence of ID “nav-publications-level3” was here.
The first occurrence of ID “nav-contacts-level3” was here.
The first occurrence of ID “nav-yr-2018-level4” was here.
The first occurrence of ID “nav-yr-2017-level4” was here.
The first occurrence of ID “nav-yr-2016-level4” was here.
The first occurrence of ID “nav-yr-2015-level4” was here.
The first occurrence of ID “nav-yr-2014-level4” was here.
The first occurrence of ID “nav-yr-2013-level4” was here.
The first occurrence of ID “nav-yr-2012-level4” was here.
The first occurrence of ID “nav-news-level3” was here.
The first occurrence of ID “section-news-level4” was here.
The first occurrence of ID “nav-contact-us-level3” was here.
The first occurrence of ID “nav-home-level3” was here.
The first occurrence of ID “nav-products-and-services-level3” was here.
The first occurrence of ID “section-products-and-services-level4” was here.
The first occurrence of ID “nav-civil-aerospace-level4” was here.
The first occurrence of ID “nav-power-systems-level4” was here.
The first occurrence of ID “nav-marine-level4” was here.
The first occurrence of ID “nav-civil-nuclear-level4” was here.
The first occurrence of ID “nav-discover-level3” was here.
The first occurrence of ID “nav-careers-level3” was here.
The first occurrence of ID “nav-partners-in-progress-level3” was here.
The first occurrence of ID “section-partners-in-progress-level4” was here.
The first occurrence of ID “nav-manufacturing-and-supply-chain-level4” was here.
The first occurrence of ID “nav-sustainability-level3” was here.
The first occurrence of ID “searchTextboxContainer” was here.
The first occurrence of ID “searchTextbox” was here.
The first occurrence of ID “SearchButtonContainer” was here.
The “name” attribute is obsolete. Consider putting an “id” attribute on the nearest container instead.
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