jellyfin-web/dashboard-ui/css/videoosd.css

.chapterThumbTextContainer,
.videoOsdBottom {
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none
}

.osdPoster img,
.pageContainer,
.videoOsdBottom {
    bottom: 0;
    left: 0;
    right: 0
}

.osdHeader {
    padding-bottom: 3vh;
    -webkit-transition: opacity .3s ease-out;
    -o-transition: opacity .3s ease-out;
    transition: opacity .3s ease-out;
    position: relative;
    z-index: 1;
    background-color: rgba(0, 0, 0, .3) !important;
    background: -webkit-gradient(linear, left top, left bottom, from(rgba(0, 0, 0, .6)), to(rgba(0, 0, 0, 0))) !important;
    background: -webkit-linear-gradient(rgba(0, 0, 0, .6), rgba(0, 0, 0, 0)) !important;
    background: -o-linear-gradient(rgba(0, 0, 0, .6), rgba(0, 0, 0, 0)) !important;
    background: linear-gradient(rgba(0, 0, 0, .6), rgba(0, 0, 0, 0)) !important;
    -webkit-backdrop-filter: none !important;
    backdrop-filter: none !important;
    color: #eee
}

.osdHeader-hidden {
    opacity: 0
}

.osdHeader .headerButton:not(.headerBackButton):not(.headerCastButton) {
    display: none
}

.chapterThumbContainer {
    -webkit-box-shadow: 0 0 1.9vh #000;
    box-shadow: 0 0 1.9vh #000;
    -webkit-box-flex: 1;
    -webkit-flex-grow: 1;
    flex-grow: 1;
    position: relative
}

.chapterThumb {
    background-position: center center;
    -webkit-background-size: contain;
    background-size: contain;
    background-repeat: no-repeat;
    border: 0;
    height: 20vh;
    min-width: 20vh
}

@media all and (orientation:portrait) {
    .chapterThumb {
        height: 30vw;
        min-width: 30vw
    }
}

@media all and (max-height:50em) and (orientation:landscape) {
    .chapterThumb {
        height: 30vh;
        min-width: 30vh
    }
}

.chapterThumbTextContainer {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, .7);
    padding: .25em .5em;
    user-select: none
}

.chapterThumbText {
    padding: .25em 0;
    margin: 0;
    opacity: 1
}

.chapterThumbText-dim {
    opacity: .6
}

.videoOsdBottom {
    position: fixed;
    background-color: rgba(0, 0, 0, .7);
    padding: 1%;
    display: -webkit-box;
    display: -webkit-flex;
    display: flex;
    -webkit-box-orient: horizontal;
    -webkit-box-direction: normal;
    -webkit-flex-direction: row;
    flex-direction: row;
    will-change: opacity;
    -webkit-transition: opacity .3s ease-out;
    -o-transition: opacity .3s ease-out;
    transition: opacity .3s ease-out;
    background: -webkit-gradient(linear, left top, left bottom, from(rgba(0, 0, 0, .5)), to(rgba(0, 0, 0, .8)));
    background: -webkit-linear-gradient(rgba(0, 0, 0, .5), rgba(0, 0, 0, .8));
    background: -o-linear-gradient(rgba(0, 0, 0, .5), rgba(0, 0, 0, .8));
    background: linear-gradient(rgba(0, 0, 0, .5), rgba(0, 0, 0, .8));
    color: #fff;
    user-select: none;
    -webkit-touch-callout: none
}

.videoOsdBottom-hidden {
    opacity: 0
}

.osdControls {
    -webkit-box-flex: 1;
    -webkit-flex-grow: 1;
    flex-grow: 1
}

.videoOsdBottom .buttons {
    padding: .25em 0 0;
    display: -webkit-box;
    display: -webkit-flex;
    display: flex;
    -webkit-flex-wrap: wrap;
    flex-wrap: wrap;
    -webkit-box-align: center;
    -webkit-align-items: center;
    align-items: center
}

.osdVolumeSliderContainer {
    width: 6.5em;
    -webkit-box-flex: 1;
    -webkit-flex-grow: 1;
    flex-grow: 1
}

.osdMediaInfo,
.volumeButtons {
    display: -webkit-box;
    display: -webkit-flex;
    -webkit-box-align: center
}

.volumeButtons {
    margin: 0 .5em 0 auto;
    display: flex;
    -webkit-align-items: center;
    align-items: center
}

.osdTimeText {
    margin-left: 1em;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none
}

.osdPoster {
    width: 10%;
    position: relative;
    margin-right: .5em
}

.osdPoster img {
    position: absolute;
    height: auto;
    width: 100%;
    -webkit-box-shadow: 0 0 1.9vh #000;
    box-shadow: 0 0 1.9vh #000;
    border: .08em solid #222;
    user-drag: none;
    user-select: none;
    -moz-user-select: none;
    -webkit-user-drag: none;
    -webkit-user-select: none;
    -ms-user-select: none
}

.osdTitle,
.osdTitleSmall {
    margin: 0 1em 0 0
}

.osdMediaInfo {
    display: flex;
    -webkit-align-items: center;
    align-items: center
}

.osdSecondaryMediaInfo {
    padding-left: .6em !important
}

.osdTextContainer {
    display: -webkit-box;
    display: -webkit-flex;
    display: flex;
    -webkit-box-align: center;
    -webkit-align-items: center;
    align-items: center;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    margin-bottom: .7em;
    padding-left: .5em
}

.osdMainTextContainer {
    -webkit-box-align: baseline;
    -webkit-align-items: baseline;
    align-items: baseline
}

.pageContainer {
    top: 0;
    position: fixed
}

@media all and (max-width:30em) {

    .btnFastForward,
    .btnRewind,
    .osdMediaInfo,
    .osdPoster {
        display: none !important
    }
}

@media all and (max-width:33.75em) {
    .videoOsdBottom .paper-icon-button-light {
        margin: 0
    }
}

@media all and (max-width:37.5em) {
    .videoOsdBottom .volumeButtons {
        display: none !important
    }
}

@media all and (max-width:75em) {
    .videoOsdBottom .endsAtText {
        display: none !important
    }
}