#thumb1 { position: absolute; z-index: 1; top: 500px; left: 160px; }
#thumb2 { position: absolute; z-index: 1; top: 500px; left: 240px; }
#thumb3 { position: absolute; z-index: 1; top: 500px; left: 320px; }
#thumb4 { position: absolute; z-index: 1; top: 500px; left: 400px; }
#thumb5 { position: absolute; z-index: 1; top: 500px; left: 480px; }
#thumb6 { position: absolute; z-index: 1; top: 500px; left: 560px; }
#thumb7 { position: absolute; z-index: 1; visibility: hidden; top: 500px; left: 560px; }
#thumb8 { position: absolute; z-index: 1; visibility: hidden; top: 500px; left: 560px; }
#thumb9 { position: absolute; z-index: 1; visibility: hidden; top: 500px; left: 560px; }
#thumb10 { position: absolute; z-index: 1; visibility: hidden; top: 500px; left: 560px; }
#thumb11 { position: absolute; z-index: 1; visibility: hidden; top: 500px; left: 560px; }
#thumb12 { position: absolute; z-index: 1; visibility: hidden; top: 500px; left: 560px; }
#thumb13 { position: absolute; z-index: 1; visibility: hidden; top: 500px; left: 560px; }
#thumb14 { position: absolute; z-index: 1; visibility: hidden; top: 500px; left: 560px; }
#thumb15 { position: absolute; z-index: 1; visibility: hidden; top: 500px; left: 560px; }
#thumb16 { position: absolute; z-index: 1; visibility: hidden; top: 500px; left: 560px; }