body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background: linear-gradient(to bottom, #e8f5e9, #c8e6c9);
  margin: 0;
  padding: 0;
  color: #2e7d32;
}

header {
  background-color: #81c784;
  text-align: center;
  padding: 1.5em 1em;
  border-bottom: 4px solid #66bb6a;
}

header h1 {
  margin: 0.2em 0;
  font-size: 2em;
}

.flag {
  width: 80px;
  display: block;
  margin: 0 auto 1em auto;
}

.intro, .list, .non-gron {
  max-width: 800px;
  margin: 2em auto;
  padding: 1em 2em;
  background-color: #f1f8e9;
  border-radius: 8px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.1);
}

h2 {
  color: #388e3c;
}

ul {
  list-style: square;
  padding-left: 1.5em;
}

footer {
  text-align: center;
  font-style: italic;
  font-size: 0.9em;
  color: #558b2f;
  padding: 2em 1em;
  background-color: #dcedc8;
  border-top: 2px solid #aed581;
}