src Attribute

Where to use the src Attribute

• As Type URI - #REQUIRED:
  src is declared on the element: img
• As Type URI:
  src is declared on the elements: script, input type="image"

Description

On img elements, the src attribute is #REQUIRED and specifies the URI of the image to be displayed.

On input type="image" elements, the src attribute specifies the URI of the image to be used in the graphical submit button. Although src is not technically #REQUIRED here, it is pointless to have a graphical submit button without an image specified!

On script elements, the src attribute specifies the URI of an external script to be loaded.

Relative URIs in src attributes are resolved with respect to the current document's base URI (see the base element).