.ui-message {
    display: block;
    position: fixed;
    color: red;
    font-size: large;
    padding: 5em;
    background-color: lightgray;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.button {
    position: relative;
    width: 10em;
    height: 5em;
    cursor: pointer;
}

#buttons-container {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    position: relative;
}