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If the data is Base64-encoded, then the data part may contain only valid Base64 characters. [7] Note that Base64-encoded data: URIs use the standard Base64 character set (with '+' and '/' as characters 62 and 63) rather than the so-called "URL-safe Base64" character set. Examples of data URIs showing most of the features are:
Base64 is particularly prevalent on the World Wide Web [1] where one of its uses is the ability to embed image files or other binary assets inside textual assets such as HTML and CSS files. [2] Base64 is also widely used for sending e-mail attachments, because SMTP – in its original form – was designed to transport 7-bit ASCII characters ...
A binary-to-text encoding is encoding of data in plain text.More precisely, it is an encoding of binary data in a sequence of printable characters.These encodings are necessary for transmission of data when the communication channel does not allow binary data (such as email or NNTP) or is not 8-bit clean.
The idea of adding timing information on the Web by extending HTML [2] came very early on, out of the work done on the Synchronized Multimedia Integration Language.Based on XML, the work on TTML started in 2003 [3] and an early draft was released in November 2004 as Timed Text (TT) Authoring Format 1.0 – Distribution Format Exchange Profile (DFXP). [4]
The data URI scheme offers an alternative for including separate elements such as images, style-sheets and scripts in-line when serving an HTML request or saving an HTML resource for offline use. Like the embedded content within MHTML, data URIs use Base64 encoding of the external resources (which may be binary or text) to embed them in-line ...
The default width and height are currently 120px. Images displayed by the <Gallery>...</Gallery> tag do not obey user viewing preferences. The packed mode will automatically adjust image sizes to use available display space optimally. Every line specifies an image file. The File: prefix is unnecessary.
Multipurpose Internet Mail Extensions (MIME) is a standard that extends the format of email messages to support text in character sets other than ASCII, as well as attachments of audio, video, images, and application programs. Message bodies may consist of multiple parts, and header information may be specified in non-ASCII character sets.
This page explains how to place images on wiki pages, where the image acts as a hypertext link to somewhere other than the image description page.Care should be taken that this is done in compliance with the licensing terms of the file in question, particularly if they require proper attribution.