.column-ttl-block > div:nth-of-type(1) {
  background-image: url(../img/main_img.png);
}

.graph-block {
  margin: 50px 0 30px;
  text-align: center;
}

.graph-block p {
  display: inline-block;
  background-color: #2970c0;
  color: #FFF;
  font-size: 20px;
  font-size: 2.0rem;
  line-height: 1.4;
  border-radius: 20px;
  padding: 6px 30px;
  margin-bottom: 30px;
}

.graph-block ul {
  display: flex;
  justify-content: space-between;
}

.graph-block ul li {
  width: 31%;
}

@media only screen and (max-width: 767px) {
  .graph-block {
    margin: 30px 0 20px;
  }
  .graph-block p {
    font-size: 1.6rem;
    padding: 4px 15px;
    margin-bottom: 20px;
  }
  .graph-block ul {
    display: block;
  }
  .graph-block ul li {
    width: auto;
    margin-bottom: 20px;
  }
}