.main-timeline {
  padding: 10px 0;
  overflow: hidden;
  position: relative;
}

.main-timeline:before {
  content: "";
  width: 3px;
  height: 100%;
  border: 2px dashed #909090;
  position: absolute;
  top: 0;
  left: 50%;
  z-index: 1;
  transform: translateX(-50%);
}

.main-timeline .timeline {
  width: 50%;
  padding-left: 5px;
  float: right;
  position: relative;
}

.main-timeline .timeline:before {
  content: "\f005";
  font-family: "Font Awesome 5 Free";
  font-weight: 900;
  width: 20px;
  height: 20px;
  line-height: 20px;
  border-radius: 50%;
  background: #f9c739;
  font-size: 12px;
  color: #fff;
  text-align: center;
  position: absolute;
  top: 59%;
  left: -10px;
  z-index: 1;
  transform: translateY(-50%);
}

.main-timeline .year {
  display: block;
  font-size: 60px;
  font-weight: 700;
  color: #1990f6;
  line-height: 41px;
  margin: 0;
  text-align: right;
}

.main-timeline .inner-content {
  padding: 40px 40px 40px 120px;
  background: #1990f6;
  overflow: hidden;
  position: relative;
}

.main-timeline .inner-content:before,
.main-timeline .inner-content:after {
  content: "";
  width: 200px;
  height: 250px;
  border-radius: 80%;
  background: #fff;
  position: absolute;
  top: 49%;
  left: -110px;
}

.main-timeline .inner-content:after {
  top: auto;
  bottom: 49%;
}

.main-timeline .title {
  font-size: 30px;
  color: #fff;
  margin-top: 0;
}

.main-timeline .description {
  font-size: 15px;
  color: #fff;
  line-height: 20px;
  text-align: justify;
  margin: 0;
}

.main-timeline .timeline:nth-child(2n) {
  padding: 0 5px 0 0;
}

.main-timeline .timeline:nth-child(2n):before {
  left: auto;
  right: -10px;
}

.main-timeline .timeline:nth-child(2n) .year {
  text-align: left;
}

.main-timeline .timeline:nth-child(2n) .inner-content {
  padding: 40px 120px 40px 40px;
}

.main-timeline .timeline:nth-child(2n) .inner-content:before,
.main-timeline .timeline:nth-child(2n) .inner-content:after {
  left: auto;
  right: -110px;
}

.main-timeline .timeline:nth-child(2) {
  margin-top: 170px;
}

.main-timeline .timeline:nth-child(odd) {
  margin: -170px 0 0 0;
}

.main-timeline .timeline:nth-child(even) {
  margin-bottom: 80px;
}

.main-timeline .timeline:first-child,
.main-timeline .timeline:last-child:nth-child(even) {
  margin: 0;
}

.main-timeline .timeline:nth-child(2n) .inner-content {
  background: #fe370d;
}

.main-timeline .timeline:nth-child(2n) .year {
  color: #fe370d;
}

.main-timeline .timeline:nth-child(3n) .inner-content {
  background: #ed7600;
}

.main-timeline .timeline:nth-child(3n) .year {
  color: #ed7600;
}

.main-timeline .timeline:nth-child(4n) .inner-content {
  background: #34ac0d;
}

.main-timeline .timeline:nth-child(4n) .year {
  color: #34ac0d;
}

.main-timeline .timeline:nth-child(5n) .inner-content {
  background: #068a72;
}

.main-timeline .timeline:nth-child(5n) .year {
  color: #068a72;
}

@media only screen and (max-width: 990px) {
  .main-timeline .inner-content {
    padding: 15px 20px 15px 120px;
  }
  .main-timeline .timeline:nth-child(2n) .inner-content {
    padding: 15px 120px 15px 20px;
  }
  .main-timeline .inner-content:before,
  .main-timeline .inner-content:after {
    border-radius: 60%;
    left: -110px;
  }
  .main-timeline .timeline:nth-child(2n) .inner-content:before,
  .main-timeline .timeline:nth-child(2n) .inner-content:after {
    right: -115px;
  }
}

@media only screen and (max-width: 767px) {
  .main-timeline {
    overflow: visible;
  }
  .main-timeline:before {
    left: 0;
    right: auto;
  }
  .main-timeline .timeline,
  .main-timeline .timeline:nth-child(even),
  .main-timeline .timeline:nth-child(odd) {
    width: 100%;
    float: none;
    padding: 0 0 0 5px;
    margin: 0 0 30px 0;
  }
  .main-timeline .timeline:last-child {
    margin-bottom: 0;
  }
  .main-timeline .timeline:nth-child(2n):before {
    right: auto;
    left: -10px;
  }
  .main-timeline .timeline:nth-child(2n) .year {
    text-align: right;
  }
  .main-timeline .timeline:nth-child(2n) .inner-content {
    padding: 15px 20px 15px 120px;
  }
  .main-timeline .timeline:nth-child(2n) .inner-content:before,
  .main-timeline .timeline:nth-child(2n) .inner-content:after {
    right: auto;
    left: -110px;
  }
}

@media only screen and (max-width: 480px) {
  .main-timeline .title {
    font-size: 23px;
  }
  .main-timeline .description {
    font-size: 13px;
  }
}