body {
    font-family: Arial, Helvetica, sans-serif;
}

.contenedor {
    font-weight: bolder;
    color: #313131;
}

.animado {
    font-size: 3rem;
    text-align: center;
    margin-top: 25%;
    margin-bottom: 25%;
}

.colores {
    animation: colorchange 20s infinite alternate;
}

@keyframes colorchange {
    0% {
        color: blue;
    }

    10% {
        color: #8e44ad;
    }

    20% {
        color: #1abc9c;
    }

    30% {
        color: #d35400;
    }

    40% {
        color: blue;
    }

    50% {
        color: #34495e;
    }

    60% {
        color: blue;
    }

    70% {
        color: #2980b9;
    }

    80% {
        color: #f1c40f;
    }

    90% {
        color: #2980b9;
    }

    100% {
        color: pink;
    }
}