Check out example codes for "html5 video player". It will help you in understanding the concepts better.
Code Example 1
<video width="320" height="240" controls>
<source src="movie.mp4" type="video/mp4">
<source src="movie.ogg" type="video/ogg">
Your browser does not support the video tag. <!-- Text to be shown incase browser doesnt support html5 -->
</video>
Code Example 2
<video width="320" height="240" controls>
<source src="movie.mp4" type="video/mp4">
<source src="movie.ogg" type="video/ogg">
Your browser does not support the video tag.
</video>
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