There is a video on the computer, you need to add a poster above the player, there is also a black screen and a button separately. When you click on the orange button start video. https://i.stack.imgur.com/9sBbP.jpg - Link to poster
<div class="box"> <video width="360" height="200" controls="controls" poster="images/play_video.jpg"> <source src="int_board.mp4"> </video> </div> This is what the result is https://imgur.com/t1MDBOB
PS on the screen you can see a black shadow on the left and on the right, how to remove it?