srclang indicates what language each subtitle files' contents are in.
src is assigned a valid URL pointing to the relevant WebVTT subtitle file in each case.
label is given a value indicating which language that subtitle set is for - for example English or Deutsch - these labels will appear in the user interface to allow the user to easily select which subtitle language they want to see.
kind is given a value of subtitles, indicating the type of content the files contain.
4.8.4.4.As you can see, each element has the following attributes set:.
4.8.4.4.4 A short phrase or label with an alternative graphical representation: icons, logos.
4.8.4.4.3 A phrase or paragraph with an alternative graphical representation: charts, diagrams, graphs, maps, illustrations.
4.8.4.4.2 A link or button containing nothing but the image.
4.8.4.4 Requirements for providing text to act as an alternative for images.
4.8.4.3.13 Reacting to environment changes.
4.8.4.3.12 Normalizing the source densities.
4.8.4.3.8 Creating a source set from attributes.
4.8.4.3.6 Preparing an image for presentation.
4.7.3 Attributes common to ins and del elements.
4.6.6.1 The ` Ping-From` and ` Ping-To` headers.
4.6.2 Links created by a and area elements.
4.2.7 Interactions of styling and scripting.
4.2.5.4 Specifying the document's character encoding.
4.2.4.6 Providing users with a means to follow hyperlinks created using the link.
4.2.4.3 Fetching and processing a resource.
3.2.9 Requirements related to ARIA and to platform accessibility APIs.
3.2.8.2 User agent conformance criteria.
3.2.8.1 Authoring conformance criteria for bidirectional-algorithm formatting characters.
3.2.8 Requirements relating to the bidirectional algorithm.
3.2.7 The innerText and outerText properties.
3.2.6.6 Embedding custom non-visible data with the data-* attributes.
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