Alternative text (alt text) is meant for readers who cannot see an image, such as blind readers and readers who use a text or mobile browser. It should summarize an image's purpose, and should not duplicate its caption. Every image should have alt text, except for purely decorative images, which should instead have "
The following table shows images and captions on the left, and alt text and captions on the right: the right column is what a visually impaired reader will hear. This table was computed from the copy of Albert Stanley, 1st Baron Ashfield cached on None.
|Image and thumbnail||Text description|
A map titled "London Underground Railways" showing each of the underground railway lines in a different colour with stations marked as blobs. Faint background detail shows the River Thames, roads and non-underground lines.
A smartly dressed middle aged gentleman in top hat, velvet-trimmed coat and stripped trousers with spats and rolled umbrella stands next to the open door of the driver's cab of an underground railway train in a station tunnel. A young woman (his daughter) in a long coat and cloche hat stands in the cab doorway.
A nine-storey concrete office building sits behind a blue-painted retaining wall beside a railway cutting.
Royal Coat of Arms of the United Kingdom (HM Government).svg