.main-heading {
    opacity: 1;
    position: absolute;
    width: 50%;
    font-size: 3rem;
    z-index: 100;
    top: 2em;
    left: 2em;
    color: #FFFFFF;
}

.slideshow,
.slideshow::after {
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0px;
    left: 0px;
    z-index: 0px;
}

.slideshow::after {
    content: '';
    background: linear-gradient(-70deg, rgba(0,0,0,0), rgba(0,0,0,0.7));
}

.img-bg-slide {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0px;
    left: 0px;
    color: transparent; /*hides span's text*/
    background-size: cover; /* covers whole viewport */
    background-position: center;
    background-repeat: no-repeat;
    opacity: 1;
    z-index: 0;
   
}

.slideshow li:nth-child(1) .img-bg-slide {
    background-image: url('../img/login/peakpx.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}
/*
.slideshow li:nth-child(2) .img-bg-slide {
    background-image: url('../img/login/peakpx.jpg');
    animation-delay: 15s;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.slideshow li:nth-child(3) .img-bg-slide {
    background-image: url('../img/login/peakpx.jpg');
    animation-delay: 30s;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.slideshow li:nth-child(4) .img-bg-slide {
    background-image: url('../img/login/peakpx.jpg');
    animation-delay: 45s;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

@keyframes backgroundSlideshow {
    0% {
        opacity: 0;
    }

    12.5% {
        opacity: 1;
    }

    25% {
        opacity: 1;
    }

    37.5% {
        opacity: 0;
    }

    100% {
        opacity: 0;
    }
}*/