*{
    margin: 0px;
    padding: 0px;

}
.header{
    background-image: url("image/header1.jpeg");
    background-size: cover;
    background-position: center;
    height:300px;
}
.card-img-top {
  height: 200px;
  object-fit: cover;
  width: 100%;
}
.card {
  transition: 0.3s;
}
.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0,0,0,0.2) 
}