.incrementa-texto {
    font-size: 2rem;
}

h2 {
    font-size: 4rem;
}

.sin-vinetas {
    list-style: none;
}

.tablero td {
    width: 7rem;
    height: 7rem;
    text-align: center;
    vertical-align: middle;
    cursor: pointer;
}

.lineas-verticales {
    border-top: none;
    border-bottom: none;
    border-left: 0.3rem solid #000;
    border-right: 0.3rem solid #000;
}

.lineas-horizontales {
    border-top: 0.3rem solid #000;
    border-bottom: 0.3rem solid #000;
    border-left: none;
    border-right: none;
}

.casilla-central {
    border-top: 0.3rem solid #000;
    border-bottom: 0.3rem solid #000;
    border-left: 0.3rem solid #000;
    border-right: 0.3rem solid #000;
}

.llenar-celda {
    display: block;
    width: 100%;
    height: 100%;
    padding: 0;
    margin: 0;
    font-size: 3rem;
}