.cdtarjeta:hover .card{
	-webkit-transform: perspective(600px) rotateY(180deg);
	-ms-transform: perspective(600px) rotateY(180deg);
	-o-transform: perspective(600px) rotateY(180deg);
	transform: perspective(600px) rotateY(180deg);
}
.cdtarjeta:hover .card img{
	filter: blur(2px);
}
.card {
	position: relative;
	transition: all ease .5s;
	transform-style: preserve-3d;
	transform: perspective(600px) rotateY(0deg);
}
.card .frontal,
.card .trasera,
.tarjeta{
	width: 100%;
	height: 350px;
	transition: all ease .5s;
}
.card .frontal{
	display: block;
}
.card .trasera{
	position: absolute;
	top: 0;
	transform: perspective(600px) rotateY(180deg);
	backface-visibility: hidden;
	overflow: auto;
}
.bg-trans{
	background-color: rgba(0, 0, 0, 0.95);
	color: #007bff;
}
.bg-trans2{
	background-color: rgba(0, 0, 0, 0.1);	
}
#que,
#tarjetas{
	padding: 5%;
	min-height: 600px;
}
#uso img{
	max-width: 100%;
	height: 600px;
}
.pad{
	padding-bottom: 20px !important;
}