*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body{
    font-family: "Montserrat";
    background-image: url(../img/bg_nuevo.png);
    /* background-repeat: no-repeat; */
    background-position: center;
    background-size: cover;
}
header{
    display: flex;
    align-items: center;
    height: 75px;
    background: #ffffff;
}

.caja-blanca {
  background-color: white;
  width: 530px;
  max-width: 95%;
  margin: 15% auto;
  text-align: center;
  padding: 25px;
  color: #0070b4;
  font-size: 35px;
}

.caja-blanca img {
  margin: 20px auto;
}

.logo {
  max-width: 900px;
  margin: auto;
}

strong {font-family: "Montserrat Bold";}

a.entrar {
  background-color: #b90066;
  color: white;
  padding: 10px 30px;
  border-radius: 35px;
  font-size: 25px;
  line-height: 25px;
  text-transform: uppercase;
  margin: 10px auto 20px;
  display: inline-block;
}


@media screen and (max-width: 767px){

    .caja-blanca {
      font-size: 25px;
    }

    a.entrar {
      font-size: 20px;
      line-height: 20px;
      padding: 10px 20px;
    }

}