html, body{
        margin: 0px;
        padding: 0px;
        height: 100%;
        width: 100%;
        text-align: center;
    }

    #imagen_reloj{
        text-align: center;
        margin: 0 auto;
        margin-bottom: 10px;
        height: 200px;
        width: 200px;
        background: url("reloj.png") center center no-repeat;
    }
    h3{
        font-size: 30px;
        color: white;
        padding-top: 80px;
    }

    #paradas_del_crono{
        border: solid;
        width: 80px;
        margin: 0 auto;
        background-color: rgba(0,100,200,0.5);
        font-weight: bolder;
        margin-top: 10px;
    }