header{
  width: 100%;
  background-image: url("https://trinket-user-assets.trinket.io/151a70fadcd196e5ad828658d70fc72182534cbe-68547c3d7eb6f43d00748a37.jpg");
  background-size: cover;
  background-attachment: fixed;
  height: 800px;
}

nav{
  display: flex;
  justify-content: flex-end;
}
.menu-link{
  font-size: 25px;
  text-decoration: none;
  color: white;
  padding: 15px;
  border-bottom: 2px solid transparent;
  transition-duration: 1.2s;
  
}
.menu-link:hover{
  border-bottom: 2px solid #ff8505;
}
/* Co dla mniejszych ekranów */
@media screen and (max-width: 568px){
  nav {
    flex-direction: column;
    align-items: flex-end;
  }
}