.subtitleappearance-fullpreview {
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: 1000;
    pointer-events: none;
    transition: 0.2s;
}

.subtitleappearance-fullpreview-hide {
    opacity: 0;
}

.subtitleappearance-fullpreview-window {
    position: absolute;
    width: 100%;
    font-size: 170%;
    text-align: center;
}

.subtitleappearance-fullpreview-text {
    display: inline-block;
    max-width: 70%;
}
