body{
  background-color: #555;
  text-align: center;
  color: #fff;
}

main {
  pading-top: 30px;
}

#main_image img {
  width: 600px;
  border: 5px solid #fff;
}

#thumnails img {
  width: 80px;
  margin: 10px;
  border: 1px solid #fff;
}