jitsi_app_c0/css/_jitsi_popover.scss

.jitsipopover {
    position: absolute;
    top: 0;
    left: 0;
    z-index: $jitsipopoverZ;
    display: table;
    visibility: hidden;
    max-width: 300px;
    min-width: 100px;
    text-align: left;
    color: $popoverFontColor;
    background-color: $popoverBg;
    background-clip: padding-box;
    border-radius: $borderRadius;
    /*-webkit-box-shadow: 0 5px 10px rgba(0, 0, 0, 0.2);*/
    /*box-shadow: 0 5px 10px rgba(0, 0, 0, 0.4);*/
    white-space: normal;
    margin-top: -$popoverMenuPadding;


    &__menu-padding,
    &__menu-padding-top {
        position: absolute;
        width: 100px;
    }

    /**
     * Invisible padding is added to the bottom of the popover to extend its
     * height so it does not close when moving the mouse from the trigger
     * element towards the popover itself.
     */
    &__menu-padding {
        bottom: -$popoverMenuPadding;
        height: $popoverMenuPadding;
    }

    /**
     * Invisible padding is added to the top of the popover to extend its height
     * so it does not close automatically when its height is shrunk from showing
     * less video statistics.
     */
    &__menu-padding-top {
        height: 20px;
        top: -20px;
    }

    &__showmore {
        display: block;
        text-align: center;
        width: 90px;
        margin: 10px auto;
    }

    > .arrow {
        position: absolute;
        display: block;
        left: 50%;
        bottom: -5px;
        margin-left: -5px;
        width: 0;
        height: 0;
        border-color: transparent;
        border-top-color: $popoverBg;
        border-style: solid;
        border-width: 5px;
        border-bottom-width: 0;
    }

    /**
     * Override default "top" styles to support popovers appearing from the
     * left of the popover trigger element.
     */
    &.left {
        margin-left: -$popoverMenuPadding;
        margin-top: 0;

        .arrow {
            border-color: transparent transparent transparent $popoverBg;
            border-width: 5px 0px 5px 5px;
            margin-left: 0;
            margin-top: -5px;
        }

        .jitsipopover {
            &__menu-padding {
                bottom: 0;
                height: 100%;
                width: $popoverMenuPadding;
            }
        }
    }
}