body {
  background-color: #333;
  color:#abc;
}

h1 {
  text-align: center;
}

.headerSection {
  width: 500px;
  border: 15px dotted gray;
  padding: 20px;
  margin: 20px;
  font-size: 16px;
  color: white;
}
.headerSection ul {
  list-style-type: none;
  margin: 0;
  padding: 0;
}

.headerLink {
  color: #def;
  font-weight: bold;
  font-size: 20px;
  text-decoration: none;
}

.contentSection {
  width: 500px;
  border: 10px dashed #ddd;
  background-color:#ddd;
  padding: 5px;
  margin: 35px;
  color: #012;
}

.message {
  font-weight: bold;
  font-style: italic;
  color: #911;
}