RocketChat/Rocket.Chat

.popover__overlay {
    position: absolute;
    z-index: 10;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;

    visibility: hidden;

    &--visible {
        visibility: visible;
    }
}

.popover__container {
    position: relative;

    display: flex;
    overflow: hidden;

    flex-direction: column;
    flex: 1;
}