body{
  background-image: linear-gradient(120deg, #84fab0 0%, #8fd3f4 100%);
}
.main{
  border: 7px solid black;
  margin-top: 250px !important;
  padding: 20px;
}
.btn{
  border: 2px solid black !important;
  margin: 20px !important;
}
h1{
  font-weight: bolder !important;
  margin: 20px !important;
}