.cover--shkola {
    background-image: url(../images/covers/shkola-cover.jpg);
}

.dialog-author {
    font-weight: bold;
    text-transform: uppercase;
}

.cover {
    overflow: hidden;
    position: relative;
}

.header {
    z-index: 4;
}

.cover-overlay {
    position: relative;
    z-index: 2;
}

.cover-video {
    height: auto;
    left: 50%;
    min-height: 100%;
    min-width: 100%;
    position: absolute;
    top: 50%;
    transform: translate(-50%,-50%);
    width: auto;
    z-index: 0;
}

@media screen and (max-width: 812px) {
    .cover-video {
        display: none;
    }
}