During the digital production process for ldsXML there was style information added downstream. During the schemas development the working group has explicitly chosen not to add style information to the content, instead they are relying on semantic based values. This attribute will temporarily store those values. The reason for doing this it keep these values close at hand for a season just in case we need it during the migration period. It is intended to be deprecated from the content and the schema as soon as it is prudent.
During the migration of content from ldsXML to (x)HTML5 we sometimes had both a mediaID and a webURL on an image tag, when this happened we have chosen to use the mediaID as the value for the @src and we stored the webURL in this attribute. The reason for doing this it keep this value close at hand for a season just in case we need it during the migration period. It is intended to be deprecated from the content and the schema as soon as it is prudent.
"property-name" — adds a property to a microdata item. The name of the property can be a word or URL, and the value is the ‘content’ of the element with this attribute.
The src attribute must contain a valid non-empty URL potentially surrounded by spaces referencing a non-interactive, optionally animated, image resource that is neither paged nor scripted.
Complex Type a
Annotations
The a element along with its href attribute represents a hyperlink (a hypertext anchor).
"property-name" — adds a property to a microdata item. The name of the property can be a word or URL, and the value is the ‘content’ of the element with this attribute.