.timeline {
    text-align: center;
    padding-top: 20px;
}

.timeline li {
    margin: 0;
    padding: 20px;
    cursor: pointer;
}

.timeline.full li {
    cursor: default;
}

.timeline ul {
    list-style: none;
    list-style: none;
    list-style-type: none;
    margin: 0 auto;
    padding: 0;
    width: 100%
}

.timeline li {
    display: inline-block;
    width: 25%;
    min-width: 380px;
}

.timeline.full li {
    display: inline-block;
    width: 75%;
    min-width: 1320px;
}

.timeline li span {
    margin: 0 auto
}

.timeline li {
    border-style: solid;
    border-width: 3px 0 0;
    border-color: #000000;
    margin-top: 15px;
    position: relative
}

.timeline li .text-title {
    display: flex;
    justify-content: center;
    font-size: 1.53125rem;
    color: #000000;
}

.timeline li .text-title i {
    line-height: 35px;
    margin-left: 6px;
}

.timeline li h3 {
    text-align: center;
    color: #000000;
}

.timeline li p {
    text-align: left
}

.timeline li span {
    background-color: #000000;
    border-radius: 12px;
    display: inline-block;
    height: 20px;
    width: 20px;
    left: 50%;
    -webkit-transform: translateX(-50%);
    transform: translateX(-50%)
}

.timeline li .block-mark {
    display: flex;
    justify-content: center;
}

.timeline li span.mark {
    position: absolute;
    top: -12px
}

.timeline li span.mark.background {
    background-color: #FFFFFF;
    height: 50px;
    width: 100px;
    border-radius: 50%;
    top: -27px;
    transition: all 0.3s;
}

.timeline li img.mask-top {
    position: absolute;
    top: -13px;
    left: 50%;
    -webkit-transform: translateX(-50%);
    transform: translateX(-50%);
}