.main-index-bg-img{
    background-image: url("../images/rainbow_siege-1.jpg") !important;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}
.index-bg-img{
    background-image: url("../images/rainbow_siege-2.jpg") !important;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}
.mainteam-bg-img{
    background-image: url("../images/rainbow_siege-3.jpg") !important;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}
.alpha-bg-img{
    background-image: url("../images/rainbow_siege-4.jpg") !important;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}
.berta-bg-img{
    background-image: url("../images/rainbow_siege-5.jpg") !important;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}