.app-dialog {
    position: absolute;
    z-index: 1000;
    top: 4em;
    left: 5em;
    min-width: 60%;
    background: silver;
    border: 1px solid darkslategray;
    max-height: 90vh;
    overflow: auto;
    box-shadow: 0 4px 20px 5px black;
    padding: 0;
}
.app-dlg-caption {
    color: white;
    background-color: darkslategray;
    font-size: 150%;
    padding-left: 1.5em;
    padding-top: 0.5em;
    padding-bottom: 0.5em;
    pointer-events: all;
    cursor: move;
}

.app-dlg-close {
    position: absolute;
    font-weight: bold;
    top: .3em;
    right: .5em;
    height: 2em;
    cursor: pointer;
    text-align: center;
    padding-top: .2em;
}