h1 {
    text-align: center;
}
#carrusel-caja {
    -moz-animation: automatizacion 15s infinite linear;
    -o-animation: automatizacion 15s infinite linear;
    -webkit-animation: automatizacion 15s infinite linear;
    animation: automatizacion 15s infinite linear;
    -webkit-transition: all 0.75s ease;
    -moz-transition: all 0.75s ease;
    -ms-transition: all 0.75s ease;
    -o-transition: all 0.75s ease;
    transition: all 0.75s ease;
    height: 240px;
    width: 300%;
}
#carrusel-contenido {
    margin: 0 auto;
    overflow: hidden;
    text-align: left;
}
.imagenes{
    height: 240px;
    width: 100%;
}
.carrusel-elemento {
    float: left;
    width: 33.333%;
}
@-moz-keyframes automatizacion {
    0% {
        margin-left: 0;
    }
    30% {
        margin-left: 0;
    }
    35% {
        margin-left: -100%;
    }
    65% {
        margin-left: -100%;
    }
    70% {
        margin-left: -200%;
    }
    95% {
        margin-left: -200%;
    }
    100% {
        margin-left: 0;
    }
}
@-webkit-keyframes automatizacion {
    0% {
        margin-left: 0;
    }
    30% {
        margin-left: 0;
    }
    35% {
        margin-left: -100%;
    }
    65% {
        margin-left: -100%;
    }
    70% {
        margin-left: -200%;
    }
    95% {
        margin-left: -200%;
    }
    100% {
        margin-left: 0;
    }
}
@keyframes automatizacion {
    0% {
        margin-left: 0;
    }
    30% {
        margin-left: 0;
    }
    35% {
        margin-left: -100%;
    }
    65% {
        margin-left: -100%;
    }
    70% {
        margin-left: -200%;
    }
    95% {
        margin-left: -200%;
    }
    100% {
        margin-left: 0;
    }
}