body {
  margin: 0;
  font-family: Arial, sans-serif;
  background-color: #171b22;
  color: #eeeeee;
}

header {
  background-color: #020a20;
  padding: 24px;
  text-align: center;
}

.site-logo {
  display: block;
  width: 260px;
  max-width: 100%;
  height: auto;
  margin: 0 auto;
}

main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 40px 24px;
}