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@DerivedChannel_StepbyStep
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@stepbystep001

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Multimedia files have formats and different extensions like: .wav, .mp3, .mp4, .mpg, .wmv, and .avi
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Only MP4, WebM, and Ogg audio are supported by the HTML standard
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131 voters214 views
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Only MP3, WAV, and Ogg video are supported by the HTML standard
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134 voters210 views
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The controls attribute adds video controls, like play, pause, and volume
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The <source> element allows you to specify alternative video files which the browser may choose from. The browser will use the first recognized format.
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The text between the <video> and </video> tags will always be displayed
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Add muted after autoplay to let your video start playing automatically (but muted)
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To play an audio file in HTML, use the element <video>
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Add mute=1 after autoplay=1 to let your video start playing automatically (but muted)
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126 voters203 views
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XHTML stands for EXtensible HyperText Markup Language
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html is stricter than XHTML
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XHTML is more XML-based version of HTML
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XHTML is HTML defined as an XML application
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XHTML isn’t supported by all major browsers
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XHTML was developed to make HTML more extensible and flexible to work with other data formats (such as XML)
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browsers don’t ignore errors in HTML pages
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125 voters221 views
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XML is a markup language where all documents must be marked up correctly (be "well-formed")
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XHTML comes with a much stricter error handling
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in XHTML <!DOCTYPE>
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in XHTML The xmlns attribute in <html> is mandatory
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in XHTML The <html>, <head>, <title>, <body> aren’t mandatory
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131 voters263 views