Data URLs
Data URLs, URLs prefixed with the data: scheme, allow content creators to embed small files inline in documents.
Syntax
Data URLs are composed of four parts: a prefix (data:), a MIME-type indicating the type of data, an optional base64 token if non-textual, and the data itself:
data:[<mediatype>][;base64],<data>
The mediatype is a MIME type string, such as 'image/jpeg' for a JPEG image file. If omitted, defaults to text/plain;charset=US-ASCII
The image below is actually a data url:
