/*****  �•ʐݒ�  *****/

h1 {
  font-size: 28px;
  line-height: 1.5;
  margin-top: 50px;
}

h2 {
  font-size: 22px;
  line-height: 1.5;
  margin-top: 30px;
  margin-bottom: 30px;
}

h3 {
  font-size: 18px;
  line-height: 2.0;
  margin-top: 10px;
  margin-bottom: 10px;
}

.strong1{
  background: linear-gradient(transparent 60%, #91e0b6 60%);
}

.strong2{
  border-bottom: 2px solid #0000ff;
}