h3 {
  font-size: 26px;
  text-align: center;
  background: radial-gradient(hsl(201, 76%, 90%), transparent, transparent);
  padding: 15px;
  font-family: "游明朝", YuMincho, "Hiragino Mincho ProN W3", "ヒラギノ明朝 ProN W3", serif;
}

.image-box {
  width: 100%;
  height: 350px;
  background-color: #EEE;
  padding: 50px;
  box-sizing: border-box;
}

.image {
  width: 100%;
  margin: 10px 0 50px 0;
}