.video  {grid-gap: 10px;}
.video li {text-align:center;background:#EFEFEF; color:#333;}
@media (max-width: 740px){
	.video  {grid-template-columns:1fr;}
}
@media (min-width: 741px){
	.video  {grid-template-columns:1fr 1fr 1fr;}
}
@media (min-width: 992px)
{
}