.section {
  width: 100%;
  overflow: hidden;
  background-image: linear-gradient(to right, #eff4ff, #d4f5fe, #dae4fe);
  padding-bottom: 30px;
}

.box {
  text-align: center;
  color: #00548e;
  padding-top: 100px;
  height: 500px;
}

.color {
  color: #00548e;
  padding-top: 30px;
}

.box h1 {
  padding: 20px 0px;
}

.flex {
  display: flex;
  margin: 40px 0;
  position: relative;
  z-index: 2;
  color: #00548e;
}

.flex_1 {
  flex: 1;
}

.mt {
  margin-top: 80px;
}

.iframe_width {
  width: 90%;
  height: 460px;
}

@media only screen and (max-width: 600px) {
  .flex {
    display: block;
  }
  .iframe_width {
    width: 100%;
    height: 360px;
  }
}
