unable to play video in browser after hosting in server

Question

Hi

 

I integrated a video into my localhost, its working fine in browsers.

 

When I published on the website, unable to play videos in all the browsers.

 

<video width="820" height="420" style="margin-left: 12%" controls>

   <source src="images/solutions/demo.mp4" type="video/mp4">

</video>

 

i uploaded a video in a path (images/solutions/demo.mp4) 

 

please help me. as soon as possible

thanks in advance