#gallery {
  padding:0; 
  margin:0; 
  list-style-type:none; 
  overflow:hidden; 
  width:600px; 
  height:600px; 
  border:8px solid #888; 
  background:#fff url(img-wallpapers-blue-wallpaper-juliomino-9957.jpg) ;
  
  }
#gallery li {
  float:left;
  }
#gallery li a {
  display:block; 
  height:30px;
  width:600px; 
  float:left; 
  text-decoration:none; 
  border-bottom:1px solid #fff; 
  cursor:default;
  }
#gallery li a img {
  width:600px; 
  height:30px; 
  border:1;
  }
#gallery li a:hover {
  background:#eee; 
  height:500px;
  }
#gallery li a:hover img {
  height:400px;
  }