html {
    box-sizing: border-box;
}

*, *:before, *:after {
    box-sizing: inherit;
}

html,
body,
#main,
#slideshow {
    width: 100%;
    height: 100%;
}

body {
    padding-top: 80px;
    font-family: 'Lora', serif;
}

#header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 80px;
    text-align: center;
    z-index: 1;
    background-color: rgba(255, 255, 255, 0.9);
}

#header h1 {
    font-size: 25px;
    margin: 15px 0 8px;
    font-weight: 400;
    line-height: 1;
}

#header p {
    font-size: 13px;
    margin: 8px 0;
}

#main {
    position: relative;
    padding: 5%;
}

#slideshow-wrap {
    position: relative;
    overflow: hidden;
}

#prev,
#next {
    display: none;
}

#prev {
    position: absolute;
    top: 0;
    left: 0;
    width: 50%;
    height: 100%;
    z-index: 1;
    cursor: w-resize;
}

#next {
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    z-index: 1;
    cursor: e-resize;
}

#slideshow {
    position: relative;
    z-index: 0;
}

#slideshow div {
    width: 100%;
    height: auto;
    text-align: center;
    margin-bottom: 2.5%;
}

.slide-image {
    max-width: 100%;
    max-height: 100%;
}

@media (min-width: 768px) {

    body {
        padding-top: 0;
    }

    #header {
        position: absolute;
        width: auto;
        height: auto;
        padding: 3%;
    }

    #header h1 {
        font-size: 28px;
    }

    #header p {
        font-size: 14px;
    }

    #main {
        padding: 5% 10%;
    }

    #prev,
    #next {
        display: block;
    }

    #slideshow div {
        position: absolute;
        top: 0;
        left: 0;
        height: 100%;
        opacity: 0;
        transition: opacity 0.6s;
        margin-bottom: 0;
    }

    #slideshow div.visible {
        opacity: 1;
    }
}