jitsi_app_c0/css/filmstrip/_horizontal_filmstrip.scss

%align-right {
    @include flex();
    flex-direction: row-reverse;
    flex-wrap: nowrap;
    justify-content: flex-start;
}

.horizontal-filmstrip .filmstrip {
    position: absolute;
    bottom: 0;
    right: 0;
    padding: 10px 5px;
    @extend %align-right;
    transition: bottom .3s;
    z-index: $filmstripVideosZ;

    &.reduce-height {
        bottom: $newToolbarSizeWithPadding;
    }

    &__videos {
        @extend %align-right;
        position:relative;
        padding: 0;
        /* The filmstrip should not be covered by the left toolbar. */
        bottom: 0;
        width:auto;
        overflow: visible !important;

        &#remoteVideos {
            border: $thumbnailsBorder solid transparent;
            padding-left: $defaultToolbarSize + 5;
            transition: bottom 2s;
        }

        /**
         * The local video identifier.
         */
        &#filmstripLocalVideo {
            align-self: flex-end;
            display: block;
        }

        &.hidden {
            bottom: calc(-196px - #{$newToolbarSizeWithPadding});
        }

        .remote-videos-container {
            display: flex;
        }
    }

    /**
     * Style the filmstrip videos in filmstrip-only mode.
     */
    &__videos-filmstripOnly {
        margin-top: auto;
        margin-bottom: auto;

        .filmstrip__videos {
            &#filmstripLocalVideo {
                bottom: 0px;
            }
        }
    }

    .remote-videos-container {
        transition: opacity 1s;
    }

    &.hide-videos {
        .remote-videos-container {
            opacity: 0;
            pointer-events: none;
        }
    }
}