input{
    width: 30%;
    padding: 12px 20px;
    margin: 8px 0;
    display: inline-block;
    border: 1px solid #ccc;
    border-radius: 4px;
    box-sizing: border-box;
}
.container{
    margin-left:50px;
    margin-top:50px;
}
.result{
    color: green ;
}
.btn{
    background-color: #4CAF50;
    border-radius: 4px;
  border: none;
  color: white;
  padding: 15px 32px;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  font-size: 16px;
  margin: 4px 2px;
  cursor: pointer;
}