body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  background-color: #f4f4fe;
}

header {
  background-color: linear-gradient(to bottom, #2b333b, rgba(43,51,49,0));
  color: white;
  text-align: center;
  padding: 1em 0;
}

section {
  margin: 2em;
  padding: 1em;
  background-color: white;
  border-radius: 5px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0,1);
}