body{
  font-family: 'Lato', sans-serif;
}

.portfolio{
	width: 900px;
	margin: 0 auto;
}
.portfolio-item{
	width: 300px;
	height: 500px;
	float: left;
	margin-top: 30px;
	position: relative;
	-webkit-perspective: 500;
}
.portfolio-bg{
	transform: rotateY(30deg);
	transition: transform 0.5s ease;
  width: 100%;
}

.portfolio-bg{
  height: 400px;
}

.portfolio-item:hover .portfolio-bg{
	transform: rotateY(0deg);

}
.portfolio-item:hover .portfolio-description{
	transform: rotateY(0deg) translateZ(0px);

}
.portfolio-description{
	background-color: #1f1f1f;
    opacity: 0.8;
    color: #fff;
	font-size: 20px;
	width: 200px;
	padding: 20px;
	position: absolute;
	top: 200px;
	left: 35px;
	box-shadow: 0 0 10px #000;
	transform: rotateY(30deg) translateZ(60px);
	transition: 0.5s ease;
  height: 220px;
  overflow: hidden;
}

.portfolio-description h4{
  text-align: center;
}

.portfolio-description p{
  font-size: 16px;
  line-height: 25px;
}