body{
    text-align:center;
    width:100%;
    margin:0 auto;
    padding:0px;
    font-family:verdana;
    background-color:#cccccc;
    background: url(../css/grupo-personas-trabajando-plan-negocios-oficina.jpg) no-repeat center center fixed; 
    -webkit-background-size: cover;
    -moz-background-size: cover;
    -o-background-size: cover;
    -ms-background-size: cover;
    background-size: cover;
    }



    input[type="text"],input[type="password"],input[type="email"],input[type="number"],input[type="select"],input[type="date"] {
        outline: none;
        padding: 10px;
        display: block;
        width: 300px;
        border-radius: 3px;
        border: 1px solid #eee; 
        margin: 10px auto;
    }
input[type="submit"]{
    padding: 10px;
    color: #fff;
    background: #0098cb;
    width: 320px;
    margin: 20px auto;
    margin-top: 0;
    border:0;
    border-radius: 3px;
    cursor: pointer;
}

input[type="submit"]{
    background-color: #00b8eb;
}

/* header {
    border-bottom: 2px solid #eee;
    padding: 20px 0;
    margin-bottom: 10px;
    width: 100%;
    text-align: center;

}
-header a {
    text-decoration: none;
    color: #333;
}
*/

/* CENTRAR  */
.contenedor {
    display: flex;
    justify-content: center;
    align-items: center;
  }