*{
    margin: 0;
    padding: 0;
}

#kenkoma{
    width: 880px;
    height: 681px;
}

.bbox{
    width: 880px;
    height: 681px;
    float: left;
}

.cbox{
    width: 480px;
    height: 681px;
    float: left;
}

.sbox{
    width: 200px;
    height: 681px;
    position: relative;
    float: left;
}

.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;
}