.carousel {
overflow: hidden;
}
.carousel .item {
-webkit-transition: opacity 1s;
-moz-transition: opacity 1s;
-ms-transition: opacity 1s;
-o-transition: opacity 1s;
transition: opacity 1s;
}
.carousel .active.left, .carousel .active.right {
left:0;
opacity:0;
z-index:2;
}
.carousel .next, .carousel .prev {
left:0;
opacity:1;
z-index:1;
}