body{
  background-image: linear-gradient(to right, #43e97b 0%, #38f9d7 100%);
  }
.col-md-6{
  border: 7px solid black;
margin-top: 150px !important;
padding: 20px !important;
}
button{
margin: 20px !important;
border: 2px solid black !important;
}
h1{
  font-weight: bolder !important;
  margin: 20px !important;
}