.main-timeline{
    font-family: 'Roboto', sans-serif;
    position: relative;
}
.main-timeline:after{
    content: '';
    display: block;
    clear: both;
}
.main-timeline:before{
    content: '';
    width: 4px;
    height: 100%;
    border-left: 4px dashed #777;
    transform: translateX(-50%);
    position: absolute;
    left: 50%;
    top: 0;
}
.main-timeline .timeline{
    width: 50%;
    padding: 0 0 0 25px;
    margin: 0 0 20px 5px;
    float: right;
    position: relative;
}
.main-timeline .timeline:before{
    content: '';
    background-color: #01B3B2;
    height: 16px;
    width: 16px;
    transform: translateY(-50%);
    position: absolute;
    left: -8px;
    top: 50%;
}
.main-timeline .timeline-content{
    color: #fff;
    background: #999;
    padding: 25px 45px 25px 65px;
    display: block;
    position: relative;
    z-index: 1;
    clip-path: polygon(93% 0, 100% 50%, 93% 100%, 0 100%, 0 0);
}
.main-timeline .timeline-content:hover{ text-decoration: none; }
.main-timeline .timeline-content:before,
.main-timeline .timeline-content:after{
    content: '';
    background-color: #fff;
    position: absolute;
    left: 2px;
    top: 2px;
    right: 2px;
    bottom: 2px;
    z-index: -1;
    clip-path: polygon(93% 0, 100% 50%, 93% 100%, 0 100%, 0 0);
}
.main-timeline .timeline-content:after{
    background-color: #01B3B2;
    left: 7px;
    top: 7px;
    right: 7px;
    bottom: 7px;
}
.main-timeline .timeline-icon {
    background-color: #fff;
    line-height: 50px;
    width: 50px;
    height: 50px;
    border-radius: 0 300px 300px 0;
    transform: translateY(-50%);
    position: absolute;
    left: 0;
    top: 50%;
}
.main-timeline .title{
    font-size: 25px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin: 0;
}
.main-timeline .description{
    font-size: 20px;
    margin: 0;
    color: #fff;
    padding: 0;
}
.main-timeline .timeline:nth-child(even){
    padding: 0 25px 0 0;
    margin: 0 5px 20px 0;
    float: left;
}
.main-timeline .timeline:nth-child(even):before{
    left: auto;
    right: -8px;
}
.main-timeline .timeline:nth-child(even) .timeline-content{
    padding: 25px 65px 25px 60px;
    clip-path: polygon(7% 0, 0 50%, 7% 100%, 100% 100%, 100% 0);
}
.main-timeline .timeline:nth-child(even) .timeline-content:before,
.main-timeline .timeline:nth-child(even) .timeline-content:after{
    clip-path: polygon(7% 0, 0 50%, 7% 100%, 100% 100%, 100% 0);
}
.main-timeline .timeline:nth-child(even) .timeline-icon{
    padding-left: 7px;
    border-radius: 300px 0 0 300px;
    left: auto;
    right: 6px;
}
.main-timeline .timeline:nth-child(4n+2):before,
.main-timeline .timeline:nth-child(4n+2) .timeline-content:after{
    background-color: #864578;
}
 
@media screen and (max-width:767px){
    .main-timeline:before{
        transform: translateX(0);
        left: 5px;
    }
    .main-timeline .timeline,
    .main-timeline .timeline:nth-child(even){
        width: 100%;
        padding: 0 0 0 25px;
        margin: 0 0 35px 0;
    }
    .main-timeline .timeline:before,
    .main-timeline .timeline:nth-child(even):before{
        transform: translateY(0);
        right: auto;
        left: 0;
        top: 45px;
    }
    .main-timeline .timeline-content,
    .main-timeline .timeline:nth-child(even) .timeline-content{
        padding: 100px 30px 20px 20px;
        clip-path: polygon(97% 0, 100% 50%, 97% 100%, 0 100%, 0 0);
    }
    .main-timeline .timeline-content:before,
    .main-timeline .timeline-content:after,
    .main-timeline .timeline:nth-child(even) .timeline-content:before,
    .main-timeline .timeline:nth-child(even) .timeline-content:after{
        clip-path: polygon(97% 0, 100% 50%, 97% 100%, 0 100%, 0 0);
    }
    .main-timeline .timeline-icon,
    .main-timeline .timeline:nth-child(even) .timeline-icon{
        padding-left: 2px;
        border-radius: 0 300px 300px 0;
        transform: translateY(0);
        left: 7px;
        right: auto;
        top: 20px;
    }
}

.main-timeline .timeline:nth-child(4n+3):before, .main-timeline .timeline:nth-child(4n+3) .timeline-content:after {
    background-color: #F66158;
}

.main-timeline .timeline:nth-child(4n+4):before, .main-timeline .timeline:nth-child(4n+4) .timeline-content:after {
    background-color: #5C686B;
}

.main-timeline .timeline:nth-child(4n+5):before, .main-timeline .timeline:nth-child(4n+5) .timeline-content:after {
    background-color: #102d74;
}

.main-timeline .timeline:nth-child(4n+6):before, .main-timeline .timeline:nth-child(4n+6) .timeline-content:after {
    background-color: #ffbc46;
}

.main-timeline .timeline:nth-child(4n+7):before, .main-timeline .timeline:nth-child(4n+7) .timeline-content:after {
    background-color: #20232e;
}

.main-timeline .timeline:nth-child(4n+8):before, .main-timeline .timeline:nth-child(4n+8) .timeline-content:after {
    background-color: #A63E2D;
}

.main-timeline .timeline:nth-child(4n+9):before, .main-timeline .timeline:nth-child(4n+9) .timeline-content:after {
    background-color: #0057a4;
}

.main-timeline .timeline:nth-child(4n+10):before, .main-timeline .timeline:nth-child(4n+10) .timeline-content:after {
    background-color: #2a8a8e;
}