GravTheme/css/slideshowext.css

.slideshow-ext {
    display: grid;
    text-align: left;
    margin-top: 30px;
    margin-bottom: 30px;
}

.slideshow-ext > input {
    display: none;
}

.slideshow-ext > .slide-content {
    opacity: 0;
    visibility: hidden;
    grid-row: 1;
    grid-column: 1;
    position: relative;
    display: flex;
    width: 100%;
    height: auto;
    overflow: hidden;
    transition: visibility 0s 2s, opacity 2s linear;
    box-sizing: border-box;
    white-space: normal;
    justify-content: center;
}

.slideshow-ext > .slide-content > div {
    width: 15%;
    line-height: normal;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.slideshow-ext > .slide-content h6 {
    font: bold 20pt "Unica One", sans-serif;
    color: rgb(152, 0, 0);
    background-color: transparent;
    text-decoration: none;
}

.slideshow-ext > .slide-content p {
    font: 18pt "Marcellus SC", serif;
    color: rgb(0, 0, 0);
    background-color: transparent;
    text-decoration: none;
}

.slideshow-ext > .slide-content a {
    display: block;
    text-align: center;
    margin: 0 auto;
    background-color: rgb(54, 71, 79);
    font: 12pt "Unica One", sans-serif;
    color: rgb(255, 255, 255);
    text-decoration: none;
/*    padding: 1px;
    border-radius: 0px;*/
    border-style: solid;
    border-width: 0px;
    border-color: rgb(55, 71, 79);

    padding: 5px;
    border-radius: 5px;
}

.slideshow-controls {
    width: 80%;
    margin: 0 auto;
    grid-row: 1;
    grid-column: 1;
    position: relative;
    top: 50%;
    height: 26px;
    z-index: 5;
    -moz-box-sizing: content-box;
    -webkit-box-sizing: content-box;
    box-sizing: content-box;
}

.slideshow-controls label {
    display: none;
    position: absolute;
    top: -50%;
    padding: 13px;
    box-shadow: inset 2px -2px 0 1px #3a3a3a;
    cursor: pointer;
    -moz-transition: box-shadow 0.15s, margin 0.15s;
    -o-transition: box-shadow 0.15s, margin 0.15s;
    -webkit-transition: box-shadow 0.15s, margin 0.15s;
    transition: box-shadow 0.15s, margin 0.15s;
}

.slideshow-controls label:hover {
    box-shadow: inset 3px -3px 0 2px #71ad37;
    margin: 0 0px;
}

.slideshow-controls label:before {
    content: '';
    position: absolute;
    top: 50%;
    left: 10%;
}

@media (max-width: 1500px) {
    .slideshow-ext {
        width: 90%;
        margin: 30px auto;
    }

    .slideshow-controls {
        width: 95%;
        top: 95%;
    }

    .slideshow-controls label {
        box-shadow: inset 2px -2px 0 1px #71ad37;
    }
}

@media (max-width: 1150px) {
    .slideshow-ext > .slide-content {
        flex-direction: column;
    }

    .slideshow-ext > .slide-content > div {
        margin: 0 auto;
        margin-bottom: 10px;
        width: 80%;
    }

    .slideshow-controls {
        top: 10%;
        width: 90%;
    }
}