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

/* .img1{
  
  width: 900px;
  height: 500px;
  float: left; 
}
*/
h1 {
  margin-top: 20px;
  text-align: center;
}

#nextBtn:hover {
  transform: scale(1.2);
  transition: 0.5s ease;
  cursor: pointer;
}
#prevBtn:hover {
  transform: scale(1.2);
  transition: 0.5s ease;
  cursor: pointer;
}