#divRegistered{
  height: 100px;
  width: 600px;
  background-color: tan;
  color: black;
  font-size: 20px;
  display: none;
}
tr{
  height: 40px;
}
.container {
  background-color: #222;
  color: #fff;
  margin: 20px auto;
  overflow: hidden;
  padding: 20px;
  position: relative;
  width: 600px;
}
form {
  background-color: #555;
  display: black;
  padding: 15px;
}