.main-bg {
    overflow: hidden;
    min-height: 100vh;
    background-image: url('../images/mainbg1.jpg');
    left: 0;
    top: 0;
    width: 100%;
    background-repeat: no-repeat;
    background-size: cover;
}

@media (max-width: 576px) {
    .main-bg {
      height: 100%;
    }
}

/*body {
    background-color: #ffffff;
}*/

.main-content {
    z-index: 5;
}



/*.main-bg:before {
    content: ' ';
    display: block;
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    opacity: 0.6;
    background-image: url('../images/mainbg.jpg');
    background-repeat: no-repeat;
    /*background-position: 50% 0;
    background-size: cover;
}*/