.main-screen-container {
    width: 100%;
    height: 100vh;
    position: relative;
}

.main-screen-model {
    position: absolute;
    z-index: -2;
    width: 100%;
    height: 100%;
    background: url('backgroundImagePng.png') 50% 50% no-repeat;
    background-size: cover;
}