#game-board {
    display: inline-block;
    padding: 20px;
    background-color: #1e1e1e;
    border-radius: 8px;
    box-shadow: 0 0 15px rgba(0, 0, 0, 0.5);
    font-size: 0; /* odstráni medzery medzi inputmi */
    /*margin-top: 20px;*/
}

.characters {
    width: 20px;
    padding: 5px;
    margin: 1px;
    border: none;
    text-align: center;
    text-transform: uppercase;
    /*readonly*/
}

.empty_characters {
    width: 20px;
    padding: 5px;
    margin: 1px;
    border: none;
    text-align: center;
    font-weight: bold;
    /*readonly*/
}