.section-intro .txt {
  font-size: 1.8rem;
}

.section-message {
  border-top: #ccc9c2 solid 1px;
  border-bottom: #ccc9c2 solid 1px;
  padding: 20px 0;
  margin: 20px 0 auto;
}

.section-message .message-block {
  margin: 2rem 10rem;
  padding: 2rem;
  background-color: #ffe4b5;
  border-radius: 10px;
}

.section-message .message-block .user {
  text-align: right;
  margin-top: 1rem;
}

.section-intro .link {
  display: flex;
  margin: 50px 0;
  padding: 0;
}

.section-intro .link .link1 {
  background-color: #838383;
  text-align: center;
  width: 400px;
  margin: 0 70px;
  padding: 20px 0;
  color: #fff;
}

.section-intro .link .link2 {
  background-color: #add8e6;
  text-align: center;
  width: 400px;
  margin: 0 70px;
  padding: 20px 0;
}

@media screen and (max-width: 767px) {
  .section-intro .txt {
    margin-top: 90px;
    font-size: 1.4rem;
  }
  .section-message .message-block {
    margin: 1rem 0rem;
    padding: 1rem;
    border-radius: 5px;
    font-size: 1.2rem;
  }
  .section-message .message-block .user {
    text-align: right;
    margin-top: 0.5rem;
  }
  .section-intro .link {
    margin: 20px 0;
  }
  .section-intro .link .link1,
  .section-intro .link .link2 {
    width: 45%;
    margin: 10px auto;
    padding: 20px 8px;
  }
}