.demo{ background-color: #eee; }
.main-timeline{
    font-family: 'Oxygen', sans-serif;
    position: relative;
}

.main-timeline:before{
    content: '';
    height: 1000px;
    width: 1px;
    border-left: 3px dashed #fff;
    transform:translateX(-50%);
    position: absolute;
    left: 50%;
    top: 0;
}

.main-timeline .timeline{
    padding-left: 52px;
    display: inline-block;
    position: relative;
    z-index: 1;
}

.main-timeline .timeline:before,
.main-timeline .timeline:after{
    content: '';
    height: 25px;
    width: 25px;
    /*background-color: #FFAC3A;*/
    border-radius: 50%;
    border: 5px solid #FEC93F;
    transform: translateX(-50%) translateY(-50%);
    position: absolute;
    left: 50%;
    top: 50%;
    z-index: -1;
}

.main-timeline .timeline:after{
    background-color: #fff;
    height: 35px;
    width: 35px;
    border: none;
    border-radius: 0;
    transform: translateX(0) translateY(-50%) rotate(45deg);
    left: 40.5%;
}

.main-timeline .timeline-content{
    color: #000;
    background-color: #fff;
    width: 40%;
    border-radius: 10px;
    display: block;
    position: relative;
}

.main-timeline .timeline-content:hover{ text-decoration: none; }

.main-timeline .title{
    color: #0C3F42;
    background-color: #FEC93F;
    font-size: 25px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 10px 10px;
    margin: 0;
    border-radius: 10px 10px 0 0;
}

.main-timeline .description{
    font-size: 15px;
    letter-spacing: 1px;
    padding: 10px 20px 15px 50px;
    margin: 0;
}

.main-timeline .timeline-icon{
    color: #0C3F42;
    background-color: #FFC83F;
    font-size: 40px;
    text-align: center;
    line-height: 70px;
    height: 70px;
    width: 70px;
    border-radius: 50%;
    display: inline-block;
    transform: translateY(-50%);
    position: absolute;
    left: -35px;
    top: 63%;
}

.main-timeline .timeline:nth-child(even){
    padding-left: 0;
    padding-right: 52px;
}
.main-timeline .timeline:nth-child(even):after{
    left: auto;
    right: 40.5%;
}

.main-timeline .timeline:nth-child(even) .timeline-content{ float: right; }

.main-timeline .timeline:nth-child(even) .timeline-icon{
    left: auto;
    right: -35px;
}

.main-timeline .timeline:nth-child(even) .description{ padding: 10px 50px 15px 20px; }

.main-timeline .timeline:nth-child(4n+2):before{
    background-color: #2980b9;
    border: 5px solid #55b0ed;
}
.main-timeline .timeline:nth-child(4n+2) .title,
.main-timeline .timeline:nth-child(4n+2) .timeline-icon{
    background-color: #55b0ed;
}

.main-timeline .timeline:nth-child(4n+3):before{
    background-color: #c0392b;
    border: 5px solid #ff665b;
}
.main-timeline .timeline:nth-child(4n+3) .title,
.main-timeline .timeline:nth-child(4n+3) .timeline-icon{
    background-color: #ff665b;
}

.main-timeline .timeline:nth-child(4n+4):before{
    background-color: #16964b;
    border: 5px solid #2ecc71;
}
.main-timeline .timeline:nth-child(4n+4) .title,
.main-timeline .timeline:nth-child(4n+4) .timeline-icon{
    background-color: #2ecc71;
}

@media screen and (max-width:990px){
    .main-timeline .timeline:after{ left:40%; }

    .main-timeline .timeline:nth-child(even):after{ right:40%; }

    .main-timeline .timeline:nth-child(even) .timeline-content,
    .main-timeline .timeline-content{
        width: 39%;
    }
}
@media screen and (max-width:767px){
    .main-timeline:before{
        transform: translateX(0);
        left: 0;
    }

    .main-timeline .timeline:nth-child(even),
    .main-timeline .timeline{
        padding: 40px 30px 0;
        margin-bottom: 30px;
    }

    .main-timeline .timeline:before{
        transform: translateX(0) translateY(-50%);
        left: -11px;
    }

    .main-timeline .timeline:nth-child(even):after,
    .main-timeline .timeline:after{
        left: 28px;
    }

    .main-timeline .timeline:nth-child(even) .timeline-content,
    .main-timeline .timeline-content{
        width: 100%;
    }

    .main-timeline .timeline:nth-child(even) .timeline-icon,
    .main-timeline .timeline-icon{
        font-size: 30px;
        line-height: 50px;
        height: 50px;
        width: 50px;
        transform: translateY(0);
        left: auto;
        right: -20px;
        top: -35px;
    }

    .main-timeline .title{ font-size: 20px; }

    .main-timeline .timeline:nth-child(even) .description,
    .main-timeline .description{
        padding: 15px 15px 15px 15px;
    }
}