.demo {
  background: #4e6457;
}

.main-timeline {
  position: relative;
}

.main-timeline:before {
  content: "";
  width: 3px;
  height: 100%;
  background: #d9b44a;
  position: absolute;
  top: 0;
  left: 50%;
}

.main-timeline .timeline {
  position: relative;
}

.main-timeline .timeline:before,
.main-timeline .timeline:after {
  content: "";
  display: block;
  width: 100%;
  clear: both;
}

.main-timeline .timeline:before {
  content: "";
  width: 5.2%;
  height: 3px;
  background: #d9b44a;
  margin-left: -5%;
  position: absolute;
  top: 112px;
  left: 50%;
}

.main-timeline .timeline-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #fff;
  border: 2px solid #d9b44a;
  margin: 0 auto;
  position: absolute;
  top: 100px;
  left: 44.5%;
  z-index: 1;
}

.main-timeline .timeline-content {
  width: 42%;
  padding: 30px;
  background: #fff;
  text-align: right;
  float: left;
  margin-top: 8px;
  border: 3px solid #d9b44a;
  -webkit-transition: all 0.3s ease 0s;
  transition: all 0.3s ease 0s;
}

.main-timeline .date {
  display: block;
  font-size: 15px;
  font-weight: 600;
  color: #4e6457;
  margin: 0 0 8px;
}

.main-timeline .title {
  font-size: 15px;
  color: #d9b44a;
  margin-top: 0;
}

.main-timeline .description {
  font-size: 16px;
  color: #777;
  line-height: 28px;
  margin-top: 8px;
}

.main-timeline .timeline:nth-child(2n):before {
  margin-left: 0;
}

.main-timeline .timeline:nth-child(2n) .timeline-icon {
  left: auto;
  right: 44.5%;
}

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

@media only screen and (max-width: 990px) {
  .main-timeline .timeline-icon {
    width: 20px;
    height: 20px;
    top: 29%;
  }
}

@media only screen and (max-width: 767px) {
  .main-timeline {
    margin: 0 15px;
  }
  .main-timeline:before {
    left: 0;
  }
  .main-timeline .timeline:before {
    left: 0;
    margin: 0;
  }
  .main-timeline .timeline-icon,
  .main-timeline .timeline:nth-child(2n) .timeline-icon {
    top: 27.5%;
    left: 4.5%;
    right: auto;
  }
  .main-timeline .timeline-content {
    width: 90%;
    float: right;
    text-align: left;
  }
  .main-timeline .timeline-content:before {
    left: -10%;
  }
}

@media only screen and (max-width: 480px) {
  .main-timeline .timeline:before {
    display: none;
  }
  .main-timeline .timeline-icon,
  .main-timeline .timeline:nth-child(2n) .timeline-icon {
    left: -9px;
  }
}