anchor.diff:  ==== Options
   
   You can use (most of) the https://developer.mozilla.org/en-US/docs/Web/HTML/Element/audio[built-in attributes] supported by the `<audio>` element, such as `preload` and `loop`.
  -In addition to those attributes, this plugin recognizes the following custom attributes:
  -
  -data-rewind _(type: boolean, default: false)_::
  -If this attribute is present, the audio stream is restarted each time playback is triggered.
  -
  -data-volume _(type: integer)_::
  -This attribute can be used to set the volume of the audio stream.
  -The value must be an integer between 0 and 10, where 0 is muted and 10 is full volume.
  -Any value outside this range will be coerced to the closest range limit.
  -If this attribute is not specified, the volume of the audio stream is not modified.
  -
  -NOTE: Using the `autoplay` and `volume` attributes is not recommended since they conflict with the behavior of this plugin.
  +
  +CAUTION: Using the `autoplay` and `volume` attributes is not recommended since they conflict with the behavior of this plugin.
  +
  +In addition to the built-in attributes, this plugin also recognizes the custom attributes defined in <<custom-attributes-for-media-elements>>.
   
   ==== Example
   
  
positive.code: However, the video is muted by default in background mode.
  If your video has sound, and you want that sound to be heard, you must specify the `data-volume` attribute.
  
  This plugin also recognizes the following custom attributes:
  
  data-rewind _(type: boolean, default: false)_::
  If this attribute is present, the video is restarted each time playback is triggered.
  
  data-volume _(type: integer)_::
  This attribute can be used to set the volume of the video.
  The value must be an integer between 0 and 10, where 0 is muted and 10 is full volume.
  Any value outside this range will be coerced to the closest range limit.
  If this attribute is not specified, the volume of the video is not modified.
  
  ==== Example
  
  
negative.code: * Vimeo video
  * YouTube video
  * Animated SVG (embedded using the `<object>` element)
  * Animated GIF (image with URL ending in `.gif`)
  
  The following sections describe how each media type is handled.
  
  