html{
    max-width: 100vh;
    margin: 0 auto;
}

.app {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: repeat(8, 1fr);
    grid-column-gap: 0px;
    grid-row-gap: 0px;
    height: 0vh;
}

.cabecera { grid-area: 1 / 1 / 2 / 3; }
.tema { grid-area: 2 / 1 / 3 / 3; }
.texto-tema { grid-area: 3 / 1 / 4 / 3; }
.letras { grid-area: 4 / 1 / 5 / 3; }
.tiempo { grid-area: 5 / 1 / 6 / 2; }
.valor-tiempo { grid-area: 6 / 1 / 7 / 2; }
.boton-tiempo { grid-area: 7 / 1 / 8 / 2; }
.rondas { grid-area: 5 / 2 / 6 / 3; }
.valor-rondas { grid-area: 6 / 2 / 7 / 3; }
.boton-rondas { grid-area: 7 / 2 / 8 / 3; }
.pie { grid-area: 8 / 1 / 9 / 3; }

.tema{
    margin-top: 20px;
}

.letras{
    margin: 0 auto;
    display: inline-flex;
}

.tiempo, .rondas{
    margin-top: 20px;
}

.tiempo, .valor-tiempo, .boton-tiempo{
    border-right: 1px solid #000000;
}

.pie{
    margin-top: 20px;
}