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HTML

            
              <audio src="http://files.parse.com/21973a51-90db-424a-83f0-07efcaa6311c/a99d86f6-3630-4c5d-a12d-4eae319a9fbe-031adc9e-a9cb-452b-949f-1d9b03d0b65d-sound.mp3" loop autoplay controls>
            
          
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↑ Insert the most common viewport meta tag

CSS

            
              
            
          
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JS

            
              
            
          
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