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

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

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

    .main-timeline .timeline:before {
        width: 12px;
        height: 12px;
        border-radius: 50%;
        background: #fff;
        margin: auto;
        position: absolute;
        top: 0;
        left: 0;
        bottom: 0;
        right: 0;
        z-index: 2;
    }

.main-timeline .timeline-icon {
    width: 16px;
    height: 95%;
    background: #029bbd;
    margin: auto;
    position: absolute;
    top: 5%;
    left: 0;
    bottom: 0;
    right: 0;
    z-index: 1;
}

    .main-timeline .timeline-icon:before,
    .main-timeline .timeline-icon:after {
        content: "";
        border-bottom: 11px solid #029bbd;
        border-left: 8px solid transparent;
        border-right: 8px solid transparent;
        position: absolute;
        top: -11px;
        left: 0;
    }

    .main-timeline .timeline-icon:after {
        border-bottom-color: #fff;
        top: auto;
        bottom: 0;
    }

.main-timeline .year {
    display: inline-block;
    padding: 5px 35px;
    margin: 0;
    border-radius: 4px;
    font-size: 26px;
    color: #fff;
    background: linear-gradient(to right, #079dc0, #01c2bf);
    text-align: center;
    position: absolute;
    top: 50%;
    left: 32%;
    transform: translateY(-50%);
}

.main-timeline .timeline-content {
    width: 50%;
    float: right;
    padding: 30px 60px 30px 60px;
    position: relative;
}

.main-timeline .icon {
    display: inline-block;
    font-size: 40px;
    color: #a7a7a7;
    margin-bottom: 7px;
}

    .main-timeline .title {
        /*font-size: 1.75rem;*/
        /*color: #4e8ab4;*/
        /*text-transform: uppercase;*/
        margin: 0 0 7px 0;
    }

.main-timeline .description {
    font-size: 14px;
    color: #a7a7a7;
    line-height: 24px;
    margin: 0;
}

.main-timeline .timeline:nth-child(2n) .year {
    left: auto;
    right: 32%;
}

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

.main-timeline .timeline:nth-child(2n) .year {
    background: linear-gradient(to right, #9e489f, #b64877);
}

.main-timeline .timeline:nth-child(2n) .timeline-icon {
    background: #9e489f;
}

    .main-timeline .timeline:nth-child(2n) .timeline-icon:before {
        border-bottom-color: #9e489f;
    }

.main-timeline .timeline:nth-child(3n) .year {
    background: linear-gradient(to right, #6ab00f, #9fce26);
}

.main-timeline .timeline:nth-child(3n) .timeline-icon {
    background: #6ab00f;
}

    .main-timeline .timeline:nth-child(3n) .timeline-icon:before {
        border-bottom-color: #6ab00f;
    }

.main-timeline .timeline:nth-child(4n) .year {
    background: linear-gradient(to right, #d84704, #ea703f);
}

.main-timeline .timeline:nth-child(4n) .timeline-icon {
    background: #d44908;
}

    .main-timeline .timeline:nth-child(4n) .timeline-icon:before {
        border-bottom-color: #d44908;
    }

@media only screen and (max-width: 1200px) {
    .main-timeline .year {
        left: 28%;
    }

    .main-timeline .timeline:nth-child(2n) .year {
        right: 28%;
    }
}

@media only screen and (max-width: 990px) {
    .main-timeline .year {
        left: 25%;
    }

    .main-timeline .timeline:nth-child(2n) .year {
        right: 25%;
    }
}

@media only screen and (max-width: 767px) {
    .main-timeline .timeline {
        padding-top: 30px;
    }

        .main-timeline .timeline:before {
            border: 15px solid transparent;
            border-top-color: #029bbd;
            border-bottom: 10px solid transparent;
            margin: 0 auto;
            position: absolute;
            top: 1px;
            left: 0;
            z-index: 2;
        }

        .main-timeline .timeline:nth-child(2n):before {
            border-top-color: #9e489f;
        }

        .main-timeline .timeline:nth-child(3n):before {
            border-top-color: #6ab00f;
        }

        .main-timeline .timeline:nth-child(4n):before {
            border-top-color: #d44908;
        }

    .main-timeline .timeline-icon {
        width: 100%;
        height: 16px;
        margin: 0;
        top: 0;
        left: 0;
    }

        .main-timeline .timeline-icon:before,
        .main-timeline .timeline-icon:after {
            border: 8px solid transparent;
            border-left: 8px solid #fff;
            top: 0;
            left: 0;
        }

        .main-timeline .timeline-icon:after {
            border-left: none;
            border-right: 8px solid #fff;
            left: auto;
            right: 0;
        }

    .main-timeline .year,
    .main-timeline .timeline:nth-child(2n) .year {
        display: block;
        margin: 0 30px 10px 30px;
        position: relative;
        top: 0;
        left: 0;
        transform: translateY(0);
    }

    .main-timeline .timeline-content,
    .main-timeline .timeline:nth-child(2n) .timeline-content {
        width: 100%;
        float: none;
        text-align: center;
        padding: 0 30px 20px;
    }
}