The data-alt-source attribute is placed upon associated image and video elements for the expressed purpose of providing a link to a source with download capabilities, such as lds.org/media-library, the need for this may eventually go away in the future.
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.
The data-alt-source attribute is placed upon associated image and video elements for the expressed purpose of providing a link to a source with download capabilities, such as lds.org/media-library, the need for this may eventually go away in the future.
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.
This attribute has a defined list of values, which include definitions that represent instructions for supplying content to translation services. This attribute should only be used if some sort of pre-processing is necessary to support translation of the content.
The data-anchor attribute is required for all associated content media and related resources. Its value must be a relative link that identifies the point in the parent content that the associated content should be anchored to.