body {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.app-header { /*in a column*/
    /*As Item*/
    flex: 0 0 3.75rem;
    background: gainsboro;

    /*As Container*/
    display: flex;
    flex-direction: row;
    align-items: center;
}

.app-frame {
    /*As Item*/
    flex: 1 1 0;
    min-height: 0;
    background: gainsboro;

    /*As Container*/
    display: flex;
    flex-direction: column;
}

.frame-body {
    /*As Item*/
    flex: 1 1 0;
    min-height: 0;
    overflow: hidden;
    padding: .5rem;

    /*As Container*/
    display: flex;
    flex-direction: column;
}

.reveal-host {
    /*As Item*/
    flex: 1 1 0;
    min-height: 0;
    transition: opacity 120ms cubic-bezier(.2,.0,.2,1);
    will-change: opacity;

    /*As Container*/
    display: flex;
    flex-direction: column;
}

.pre-reveal {
    opacity: 0;
}

.reveal-once {
    opacity: 1;
}

.components-reconnect-show,
.components-reconnect-failed,
.components-reconnect-rejected,
#components-reconnect-modal {
    display: none !important;
    visibility: hidden !important;
}