body { font-family: 'Avenir','Helvetica Neue','Helvetica','Arial','Hiragino Sans','ヒラギノ角ゴシック',YuGothic,'Yu Gothic','メイリオ', Meiryo,'ＭＳ Ｐゴシック','MS PGothic',sans-serif;
  padding-top: 3rem;
  padding-bottom: 3rem;
  color: #5a5a5a;
}
.headert {
  padding-top: 2rem;
}
.header1 {
  padding-top: 1rem;
}
section h2 {
  font-size:  1.1rem;
  line-height: 3rem; 
  margin-top: 4rem;
}

@media (min-width: 992px) {
section h2 {
  font-size:  2rem;
  line-height: 4rem;
} 
}
section h3 {
  font-size:  1.2rem;
}

@media (min-width: 992px) {
section h3 {
  font-size:  2rem;
} 
}