Errors:
A “link” element with a “sizes” attribute must have a “rel” attribute that contains the value “icon” or the value “apple-touch-icon”.
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
Attribute “href” not allowed on element “div” at this point.
No space between attributes.
Duplicate attribute “data-val”.
End tag “header” seen, but there were open elements.
Unclosed element “div”.
Element “h4” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Element “img” is missing required attribute “src”.
Duplicate ID “arrivalDate”.
Duplicate ID “departureDate”.
Duplicate ID “adultCount”.
Duplicate ID “childCount”.
Duplicate ID “checkAvailability”.
Attribute “href” not allowed on element “button” at this point.
The element “button” must not appear as a descendant of the “a” element.
Stray end tag “div”.
Bad value “001-favorite-1” for attribute “id” on element “symbol”: Not a valid XML 1.0 name.
Bad value “001-microwave” for attribute “id” on element “symbol”: Not a valid XML 1.0 name.
Bad value “001-rings” for attribute “id” on element “symbol”: Not a valid XML 1.0 name.
Bad value “001-scissors” for attribute “id” on element “symbol”: Not a valid XML 1.0 name.
Bad value “001-sport” for attribute “id” on element “symbol”: Not a valid XML 1.0 name.
Bad value “001-wifi” for attribute “id” on element “symbol”: Not a valid XML 1.0 name.
Bad value “002-favorite” for attribute “id” on element “symbol”: Not a valid XML 1.0 name.
Bad value “002-fridge” for attribute “id” on element “symbol”: Not a valid XML 1.0 name.
Bad value “002-golf-1” for attribute “id” on element “symbol”: Not a valid XML 1.0 name.
Bad value “002-people” for attribute “id” on element “symbol”: Not a valid XML 1.0 name.
Bad value “002-signs” for attribute “id” on element “symbol”: Not a valid XML 1.0 name.
Bad value “002-volleyball-ball” for attribute “id” on element “symbol”: Not a valid XML 1.0 name.
Bad value “003-ball-1” for attribute “id” on element “symbol”: Not a valid XML 1.0 name.
Bad value “003-computer” for attribute “id” on element “symbol”: Not a valid XML 1.0 name.
Bad value “003-favorite-2” for attribute “id” on element “symbol”: Not a valid XML 1.0 name.
Bad value “003-hamburger” for attribute “id” on element “symbol”: Not a valid XML 1.0 name.
Bad value “003-placeholder” for attribute “id” on element “symbol”: Not a valid XML 1.0 name.
Bad value “003-tennis” for attribute “id” on element “symbol”: Not a valid XML 1.0 name.
Bad value “004-ball” for attribute “id” on element “symbol”: Not a valid XML 1.0 name.
Bad value “004-bed” for attribute “id” on element “symbol”: Not a valid XML 1.0 name.
Bad value “004-bow-tie” for attribute “id” on element “symbol”: Not a valid XML 1.0 name.
Bad value “004-printer” for attribute “id” on element “symbol”: Not a valid XML 1.0 name.
Bad value “004-tray” for attribute “id” on element “symbol”: Not a valid XML 1.0 name.
Bad value “005-bicycle” for attribute “id” on element “symbol”: Not a valid XML 1.0 name.
Bad value “005-golf” for attribute “id” on element “symbol”: Not a valid XML 1.0 name.
Bad value “005-light” for attribute “id” on element “symbol”: Not a valid XML 1.0 name.
Bad value “005-lotus” for attribute “id” on element “symbol”: Not a valid XML 1.0 name.
Bad value “006-bike” for attribute “id” on element “symbol”: Not a valid XML 1.0 name.
Bad value “006-holidays” for attribute “id” on element “symbol”: Not a valid XML 1.0 name.
Bad value “006-sign” for attribute “id” on element “symbol”: Not a valid XML 1.0 name.
Bad value “007-baby-1” for attribute “id” on element “symbol”: Not a valid XML 1.0 name.
Bad value “007-bed” for attribute “id” on element “symbol”: Not a valid XML 1.0 name.
Bad value “008-baby” for attribute “id” on element “symbol”: Not a valid XML 1.0 name.
Bad value “008-steak-2” for attribute “id” on element “symbol”: Not a valid XML 1.0 name.
Bad value “009-nature” for attribute “id” on element “symbol”: Not a valid XML 1.0 name.
Bad value “009-steak” for attribute “id” on element “symbol”: Not a valid XML 1.0 name.
Bad value “010-fire” for attribute “id” on element “symbol”: Not a valid XML 1.0 name.
Bad value “011-grill-1” for attribute “id” on element “symbol”: Not a valid XML 1.0 name.
Bad value “012-grill” for attribute “id” on element “symbol”: Not a valid XML 1.0 name.
Bad value “013-cutlery” for attribute “id” on element “symbol”: Not a valid XML 1.0 name.
Bad value “014-dinner” for attribute “id” on element “symbol”: Not a valid XML 1.0 name.
Bad value “015-laundry-service” for attribute “id” on element “symbol”: Not a valid XML 1.0 name.
Bad value “016-lotus” for attribute “id” on element “symbol”: Not a valid XML 1.0 name.
Bad value “017-dumbbell” for attribute “id” on element “symbol”: Not a valid XML 1.0 name.
Bad value “018-golf” for attribute “id” on element “symbol”: Not a valid XML 1.0 name.
Bad value “019-sports” for attribute “id” on element “symbol”: Not a valid XML 1.0 name.
Bad value “020-kayak” for attribute “id” on element “symbol”: Not a valid XML 1.0 name.
Bad value “calendar (1)” for attribute “id” on element “symbol”: Not a valid XML 1.0 name.
Bad value “flyer copy” for attribute “id” on element “symbol”: Not a valid XML 1.0 name.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
The “for” attribute of the “label” element must refer to a non-hidden form control.
The “aria-labelledby” attribute must point to an element in the same document.
The “aria-controls” attribute must point to an element in the same document.
Warnings:
The “language” attribute on the “script” element is obsolete. You can safely omit it.
The “navigation” role is unnecessary for element “nav”.
Attribute “href” without an explicit value seen. The attribute may be dropped by IE7.
The first occurrence of ID “arrivalDate” was here.
The first occurrence of ID “departureDate” was here.
The first occurrence of ID “adultCount” was here.
The first occurrence of ID “childCount” was here.
The first occurrence of ID “checkAvailability” was here.
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.