.image-list {
    max-height: 50vh;
    max-width: 680px;
    overflow: auto;
    line-height: 0;
    border: 1px solid;
    text-align: center;
    padding: 8px;
    border-radius: 2px;
    position: relative;
    white-space: normal;
}

.slide-thumbnail {
    position: relative;
    display: inline-block;
    width: 160px;
    height: 90px;
    background-repeat: no-repeat;
    background-size: contain;
    background-position: center;
    margin: 4px;
    border-radius: 2px;
    /*background-color: black;*/
}

.image-list > img {
    display: block;
    width: 100%;
}

.slide-delete {
    display: none;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #212121;
    opacity: .87;
    line-height: 90px;
    font-size: 32px;
    text-align: center;
    text-shadow: 1px 1px 1px black;
    color: white;
    cursor: pointer;
    border-radius: 2px;
}

.slide-thumbnail:hover .slide-delete {
    display: block;
}

.slides-loading {
    text-align: center;
    overflow: visible;
}

.spinner {
    display: inline-block;
    width: 50px;
    height: 50px;
    -webkit-animation: spin 1s infinite linear;
    -moz-animation: spin 1s infinite linear;
    animation: spin infinite linear 1s;
}

@-moz-keyframes spin {
    from {
        -moz-transform: rotate(0deg);
        transform: rotate(0deg);
    }
    to {
        -moz-transform: rotate(360deg);
        transform: rotate(360deg);
    }
}

@-webkit-keyframes spin {
    from {
        -webkit-transform: rotate(0deg);
        transform: rotate(0deg);
    }
    to {
        -webkit-transform: rotate(360deg);
        transform: rotate(360deg);
    }
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}