body {
    margin: 0;
    font-size: 0;
    overflow-x: hidden;
}

#slideshow {
    width: 100%;
    margin: 0 auto;
    position: relative;
    border: 1px solid #fff;
}

#slideshow img {
    position: absolute;
    left: 0;
    top: 0;
    opacity: 0;
    width:100%; 
    height:100%;
    object-fit: cover;
}

#slideshow img:first-child {
    position: relative;
}

#container:fullscreen {
    display: flex;
    justify-content: center;
    align-items: center;
    background: #fff;
}

#container:-moz-full-screen,
#container:-ms-full-screen,
#container:-webkit-fullscreen,
#container:fullscreen {
    width: 100%;
    margin: 0 auto;
    background: #fff;
}

:-webkit-full-screen {
    width: 100%;
    height: 100%;
}

*:-moz-full-screen {
    background: #fff;
}

*:-webkit-full-screen {
    background: #fff;
}