@media screen and (max-width: 800px)
{
    #essaie
    {
    	display: none;
    }
}

@media screen and (min-width: 800px)
{
    #essaie1
    {
    	display: none;
    }
}

@media screen and (max-width: 600px)
{
    video
    {
    	width:90%;
    }
}

@media screen and (max-width: 800px)
{
    h1
    {
    	display: none;
    }
}