body  {
  background-image: url("https://wallpaperaccess.com/full/545792.jpg");
  background-color: #cccccc;
}


#btn {
  background-color: #1B9CFC;
  color: white;
  padding: 14px 40px;
  border-radius: 12px;
  display: block;
  margin: 0 auto;
  margin-top: 20px;
  padding-top: 20px;
}
#btn1 {
  background-color: green; 
  color: white;
  padding: 14px 40px;
  border-radius: 12px;
  display: block;
  margin: 0 auto;
  margin-top: 20px;
}