#caption { text-align: center; }
#slideshow { margin: 0px auto; width: 600px; height: 440px; }
#slideshow div { width: 600px; height: 450px;  }
#slideshow div img { margin: auto; display: block; height: 350px; padding: 35px; border: 1px solid #ccc; background-color: #eee; top:0; left:0;  max-width: 450px;}
#slideshow div { display: none }
#slideshow img.first { display: block }