body {
  font-family: Arial, sans-serif;
}

.wrap {
  display: table;
  margin: 0 auto;
}

.title {
  display: inline-block;
  font-size: 1.5rem;
  font-weight: bold;
  margin: 0 1rem 1rem 0;
}

.container {
  display: flex;
  flex-wrap: wrap-reverse;
  justify-content: center;
}

.kana-container {
  display: flex;
  flex-wrap: wrap;
  margin-bottom: 0.5rem;
  max-width: 660px;
}

.group {
  margin-right: 1rem;
}

.group-item {
  display: flex;
  align-items: center;
  margin-bottom: 0.5rem;
}

.space {
  display: inline-block;
  width: 1.75rem;
  height: 1.75rem;
  background: #ccc;
}

.kana-english {
  margin-left: 2px;
}

.kana-background {
  background-color: #fff;
  text-align: center;
  width: 1.75rem;
  height: 1.75rem;
}

.kana {
  text-align: center;
  font-size: 1.25rem;
  line-height: 1.7rem;
  font-family: "ヒラギノ角ゴ Pro W3", "Hiragino Kaku Gothic Pro",Osaka, "メイリオ", Meiryo, "ＭＳ Ｐゴシック", "MS PGothic", sans-serif;
}