body {
    margin: 0;
    padding: 0;
}

.main {
    margin: 30px 100px;
}

.time-axis {
    margin: 0;
    padding: 0;
    position: relative;
}

.time-axis:before {
    content: '';
    position: absolute;
    left: 93px;
    top: 15px;
    width: 1px;
    height: 100%;
    background-color: #E4E4E4;
}

.time-axis-item {
    list-style: none;
    padding-left: 150px;
    position: relative;
    line-height: 45px;
    font-size: 14px;
    color: #141414;
}

.time-axis-achievement {
    margin: 0;
}

.time-axis-date {
    position: absolute;
    left: 0;
    top: 0;
    color: #666;
}

.time-axis-date span {
    position: absolute;
    right: -49px;
    top: 35%;
    display: block;
    width: 13px;
    height: 13px;
    border: 1px solid #ccc;
    border-radius: 100%;
    background-color: #fff;
}

.time-axis-date span:after {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    right: 0;
    bottom: 0;
    width: 7px;
    height: 7px;
    margin: auto;
    background-color: #ccc;
    border: 1px solid #ccc;
    border-radius: 100%;
}

.time-axis-item:last-child .time-axis-date span {
    border-color: #D7171F;
}

.time-axis-item:last-child .time-axis-date span:after {
    background-color: #D7171F;
    border-color: #D7171F;
}