.main-timeline{
  font-family: 'Roboto', sans-serif;
  padding: 20px 0;
  position: relative;
}
.main-timeline:before,
.main-timeline:after{
  content: '';
  height: 40px;
  width: 40px;
  background-color: #e7e7e7;
  border-radius: 50%;
  border: 10px solid #303334;
  transform:translateX(-50%);
  position: absolute;
  left: 50%;
  top: -15px;
  z-index: 2;
}
.main-timeline:after{
  top: auto;
  bottom:15px;
}
.main-timeline .timeline{
  padding: 35px 0;
  margin-top: -30px;
  position: relative;
  z-index: 1;
}
.main-timeline .timeline:before,
.main-timeline .timeline:after{
  content: '';
  height: 100%;
  width: 50%;
  border-radius: 100px 0 0 100px;
  border: 15px solid #46B2BC;
  border-right: none;
  position: absolute;
  left: 0;
  top: 0;
  z-index: -1;
}
.main-timeline .timeline:after{
  height: calc(100% - 30px);
  width: calc(50% - 12px);
  border-color: #65C7D0;
  left: 12px;
  top: 15px;
}
.main-timeline .timeline-content{ display:inline-block; }
.main-timeline .timeline-content:hover{ text-decoration: none; }
.main-timeline .timeline-year{
  color: #65C7D0;
  font-size: 50px;
  font-weight: 600;
  display: inline-block;
  transform:translateY(-50%);
  position: absolute;
  top: 50%;
  left: 10%;
}
.main-timeline .timeline-icon{
  color: #65C7D0;
  font-size: 80px;
  display: inline-block;
  transform: translateY(-50%);
  position: absolute;
  left: 34%;
  top: 50%;
}
.main-timeline .content{
  color: #909090;
  width: 50%;
  padding: 20px;
  display: inline-block;
  float: right;
}
.main-timeline .title{
  color: #65C7D0;
  font-size: 22px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin: 0 0 5px 0;
}
.main-timeline .description{
  font-size: 15px;
  letter-spacing: 1px;
  margin: 0;
}
.main-timeline .timeline:nth-child(even):before{
  left: auto;
  right: 0;
  border-radius: 0 100px 100px 0;
  border: 15px solid red;
  border-left: none;
}
.main-timeline .timeline:nth-child(even):after{
  left: auto;
  right: 12px;
  border: 15px solid green;
  border-left: none;
  border-radius: 0 100px 100px 0;
}
.main-timeline .timeline:nth-child(even) .content{ float: left; }
.main-timeline .timeline:nth-child(even) .timeline-year{
  left: auto;
  right: 10%;
}
.main-timeline .timeline:nth-child(even) .timeline-icon{
  left: auto;
  right: 32%;
}
.main-timeline .timeline:nth-child(5n+2):before{ border-color: #EA3C14; }
.main-timeline .timeline:nth-child(5n+2):after{ border-color: #EF5720; }
.main-timeline .timeline:nth-child(5n+2) .timeline-icon{ color: #EA3C14; }
.main-timeline .timeline:nth-child(5n+2) .timeline-year{ color: #EA3C14; }
.main-timeline .timeline:nth-child(5n+2) .title{ color: #EA3C14; }
.main-timeline .timeline:nth-child(5n+3):before{ border-color: #8CC63E; }
.main-timeline .timeline:nth-child(5n+3):after{ border-color: #6CAF29; }
.main-timeline .timeline:nth-child(5n+3) .timeline-icon{ color: #8CC63E; }
.main-timeline .timeline:nth-child(5n+3) .timeline-year{ color: #8CC63E; }
.main-timeline .timeline:nth-child(5n+3) .title{ color: #8CC63E; }
.main-timeline .timeline:nth-child(5n+4):before{ border-color: #F99324; }
.main-timeline .timeline:nth-child(5n+4):after{ border-color: #FBB03B; }
.main-timeline .timeline:nth-child(5n+4) .timeline-icon{ color: #F99324; }
.main-timeline .timeline:nth-child(5n+4) .timeline-year{ color: #F99324; }
.main-timeline .timeline:nth-child(5n+4) .title{ color: #F99324; }
.main-timeline .timeline:nth-child(5n+5):before{ border-color: #0071BD; }
.main-timeline .timeline:nth-child(5n+5):after{ border-color: #0050A3; }
.main-timeline .timeline:nth-child(5n+5) .timeline-icon{ color: #0071BD; }
.main-timeline .timeline:nth-child(5n+5) .timeline-year{ color: #0071BD; }
.main-timeline .timeline:nth-child(5n+5) .title{ color: #0071BD; }
@media screen and (max-width:1200px){
  .main-timeline .timeline:after{ border-radius: 88px 0 0 88px; }
  .main-timeline .timeline:nth-child(even):after{ border-radius: 0 88px 88px 0; }
}
@media screen and (max-width:767px){
  .main-timeline .timeline{ margin-top: -19px; }
  .main-timeline .timeline:before {
      border-radius: 50px 0 0 50px;
      border-width: 10px;
  }
  .main-timeline .timeline:after {
      height: calc(100% - 18px);
      width: calc(50% - 9px);
      border-radius: 43px 0 0 43px;
      border-width:10px;
      top: 9px;
      left: 9px;
  }
  .main-timeline .timeline:nth-child(even):before {
      border-radius: 0 50px 50px 0;
      border-width: 10px;
  }
  .main-timeline .timeline:nth-child(even):after {
      height: calc(100% - 18px);
      width: calc(50% - 9px);
      border-radius: 0 43px 43px 0;
      border-width: 10px;
      top: 9px;
      right: 9px;
  }
  .main-timeline .timeline-icon{ font-size: 60px; }
  .main-timeline .timeline-year{ font-size: 40px; }
}
@media screen and (max-width:479px){
  .main-timeline .timeline-icon{
      font-size: 50px;
      transform:translateY(0);
      top: 25%;
      left: 10%;
  }
  .main-timeline .timeline-year{
      font-size: 25px;
      transform:translateY(0);
      top: 65%;
      left: 9%;
  }
  .main-timeline .content{
      width: 68%;
      padding: 10px;
  }
  .main-timeline .title{ font-size: 18px; }
  .main-timeline .timeline:nth-child(even) .timeline-icon{
      right: 10%;
  }
  .main-timeline .timeline:nth-child(even) .timeline-year{
      right: 9%;
  }
}