.introduction {
  background-image: url("../../image/introduction-background.jpg");
  background-repeat: no-repeat;
  background-size: cover;
}

.main_title {
  position: relative;
  font-weight: 600;
  color: white;
  margin: 0;
  position: relative;
  z-index: 4;
}

.main_title::after {
  position: absolute;
  bottom: 0;
  left: 0;
  margin: 0 auto;
  content: "";
  height: 3px;
  width: 95%;
  background-color: white;
  z-index: 1;
}

.intro_desc {
  border: 2px solid white;
}

.desc {
  color: white;
  font-weight: 300;
  font-style: italic;
}

.sub_title {
  position: relative;
  font-size: 48px;
  color: #41863d;
  font-weight: 600;
}

.sub_title::after {
  position: absolute;
  bottom: 0;
  right: 0;
  margin: 0 auto;
  content: "";
  height: 3px;
  width: 95%;
  background-color: #41863d;
  z-index: 1;
}

.desc_card {
  border: 2px solid #41863d;
  border-radius: 50px;
  color: #41863d;
}

.desc_img {
  width: 100px;
  height: 100px;
}

.content.container-fluid {
  padding: 0 5%;
}

.desc_title {
  font-weight: 600;
  font-size: 24px;
}

@media only screen and (max-width: 576px) {
  .main_title, .sub_title {
    font-size: 24px;
  }
  .introduction {
    margin-bottom: 20px;
  }
}
@media only screen and (min-width: 576px) {
  .main_title, .sub_title {
    font-size: 28px;
  }
}
@media only screen and (max-width: 991px) {
  .desc {
    font-size: 18px;
  }
  .desc_body {
    font-size: 18px;
  }
}
@media only screen and (min-width: 992px) {
  .main_title, .sub_title {
    font-size: 32px;
  }
  .desc {
    font-size: 24px;
  }
  .desc_body {
    font-size: 20px;
  }
}
@media only screen and (min-width: 1400px) {
  .main_title, .sub_title {
    font-size: 48px;
  }
  .desc_title {
    font-size: 32px;
  }
  .desc_body {
    font-size: 24px;
  }
  .desc_card {
    padding: 15px;
  }
}