body {
  color: #333;
  height: 100%;
  font-family: Arial, Helvetica Neue, Helvetica, sans-serif;
  font-size: 14px;
  line-height: 20px;
}

.body {
  height: 100%;
}

.principal {
  background-color: #082847;
  background-image: url('../images/bg.png');
  background-position: 50%;
  background-repeat: no-repeat;
  background-size: cover;
  flex-flow: column wrap;
  justify-content: center;
  align-items: center;
  width: 100%;
  height: auto;
  min-height: 100%;
  padding-left: 10%;
  padding-right: 10%;
  display: flex;
  position: relative;
}

.txt {
  color: #fff;
  text-align: center;
  max-width: 790px;
  margin-top: 30px;
  font-size: 28px;
  line-height: 38px;
}

@media screen and (max-width: 767px) {
  .principal {
    background-image: url('../images/bg_mob.png');
    padding-left: 2.5%;
    padding-right: 2.5%;
  }

  .logo {
    max-width: 250px;
  }

  .txt {
    font-size: 20px;
    line-height: 30px;
  }
}