ArtPlayer/packages/artplayer/src/style/artplayer.scss

.art-undercover {
    background: #000;
    position: fixed;
    top: 0;
    left: 0;
    display: none;
    height: 100%;
    width: 100%;
    opacity: 0.9;
    z-index: 10;
}

.art-video-player {
    display: flex;
    position: relative;
    margin: 0 auto;
    z-index: 20;
    width: 100%;
    height: 100%;
    outline: 0;
    zoom: 1;
    font-family: Roboto, Arial, Helvetica, sans-serif;
    color: #eee;
    text-align: left;
    direction: ltr;
    font-size: 14px;
    line-height: 1.3;
    user-select: none;
    -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
    touch-action: manipulation;
    -ms-high-contrast-adjust: none;

    * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
    }

    ::-webkit-scrollbar {
        width: 5px;
    }

    ::-webkit-scrollbar-thumb {
        background-color: #666;
    }

    ::-webkit-scrollbar-thumb:hover {
        background-color: #ccc;
    }

    .art-icon {
        display: inline-flex;
        justify-content: center;
        align-items: center;
        line-height: 1.5;
        svg {
            fill: #fff;
        }
    }

    img {
        max-width: 100%;
        vertical-align: top;
    }

    & >>> object {
        display: block;
        position: absolute;
        top: 0;
        left: 0;
        height: 100%;
        width: 100%;
        overflow: hidden;
        pointer-events: none;
        z-index: -1;
    }

    @supports ((-webkit-backdrop-filter: initial) or (backdrop-filter: initial)) {
        .art-backdrop-filter {
            -webkit-backdrop-filter: saturate(180%) blur(20px);
            backdrop-filter: saturate(180%) blur(20px);
            background-color: rgba(0, 0, 0, 0.7) !important;
        }
    }
}