body {
  background-color: #000;
  font-family: 'Hiragino Maru Gothic ProN W4', 'Hiragino Sans', 'Meiryo',
    sans-serif;
}

.container {
  max-width: 600px;
  margin: 0 auto;
  background-color: #bcf16c;
}

header {
  text-align: center;
}

img {
  padding: 0 1em 0.5em;
}