.cells, .plays, .cards {
    display: none;
}
.plays-app, .cards-app {
    margin-top: 10px;
}
.plays-app button, .cards-app button {
    margin-right: 5px;
    padding: 5px 10px;
    cursor: pointer;
}
.progress {
    margin: 10px 0;
}
.question, .answer {
    margin: 5px 0;
}