* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

.text-top {
  text-align: center;
  color: #000;
}

.button {
  text-align: center;
}

.img-top img{
  background-repeat: no-repeat;
  background-position: center center;
  background-size: cover;
  width: 100%;
  height: 300px;
}

.confirmar img{
  width: 20%;
}

.btn-primary {
  width: 200px;
  height: 50px;
}


form {
  border-radius: 30px;
  -webkit-box-shadow: 9px 14px 80px -2px rgba(0,0,0,0.75);
  -moz-box-shadow: 9px 14px 80px -2px rgba(0,0,0,0.75);
  box-shadow: 9px 14px 80px -2px rgba(0,0,0,0.75);
}

@media (max-width: 500px) {
  .text-top h1{
    font-size: 33px !important;
  }

  .img-top img{
    background: url("img/header-mobile.png");
    background-repeat: no-repeat;
    background-position: center;
    background-size: cover;
    width: 100%;
    height: 300px;
  }

  .confirmar img{
    width: 100%;
  }
}