*{
    margin: 0;
    padding: 0;
}

body{
    width: 1000px;
    height: 680px;
}

.delta {
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    bottom: 0;
    margin: auto;
    opacity: 0.5;
}

.delta:hover{
    opacity: 1;
    transition: 0.5s;
}

.arrow,
.arrow label {
	position: absolute;
	top: 0;
	width: 50px;
	height: 100%;
}
.prev,
.arrow label {
	left: 0;
}
.next {
	right: 0;
}