/* section 1 */
.section-1 {
  margin-top: 6rem;
}
.section-1 .box {
  text-align: center;
  width: 490px;
  height: 350px;
  margin: auto;
}
.section-1 img.library {
  display: block;
  margin: auto;
  margin-bottom: 1rem;
  width: 100%;
  height: 100%;
}
.section-1 .a-1 {
  text-decoration: none;
  font-weight: bold;
  font-size: 19px;
  color: var(--main-color);
}

/* Communication */
.Communication .fb-img img {
    position: fixed;
    bottom: 70px;
    left: 35px;
    width: 40px;
    z-index: 100000;
  }
  .Communication .what-img img {
    position: fixed;
    bottom: 20px;
    left: 35px;
    width: 40px;
    z-index: 100000;
  } /* Communication */