.pi-thumb{
		overflow:hidden;
	}
	.pi-thumb img{
		transition: opacity 0.35s, transform 0.35s;
    	transform: scale(1);
	}
	.pi-thumb:hover img{
		transform: scale(1.1);
	}
	.pi-thumb::before {
		content: '';
		display: block;
		width: 100%;
		height: 100%;
		position: absolute;
		top: 0;
		left: 0;
		background: #000;
		z-index: 99;
		opacity: 0;
		transition: opacity 0.4s;
	}