.carousel-img-1 {
    background-image:url('../img/images/slider4.jpg');
    width: 100%;
    height: 100%;
     background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
}

.carousel-img-2 {
    background-image:url('../img/images/slider5.jpg');
    width: 100%;
    height: 100%;
    background-position: center;
    -webkit-background-size: cover;
    -moz-background-size: cover;
    background-size: cover;
    -o-background-size: cover;
}

.carousel-img-3 {
    background-image:url('../img/images/slider3.jpg');
    width: 100%;
    height: 100%;
    background-position: center;
    -webkit-background-size: cover;
    -moz-background-size: cover;
    background-size: cover;
    -o-background-size: cover;
}