*{
    margin: 0;
    padding: 0;
}
._step{
    width: 100%;
    /* border: 1px solid black; */
    font-size: 13px;
}
._step>div{
    width: 100%;
}
.stepTitle{
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.stepTitle > div{
    flex: 1;
    text-align: center;
}
.stepTitle > div:nth-child(even){
    padding-top: 10px;
}
.stepDate{
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.stepDate > div{
    flex: 1;
    text-align: center;
}
.stepPic{
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.stepPic > div{
    flex: 1;
    text-align: center;
    position: relative;
}
.rollBox{
    width: 25px;
    height: 25px;
    display: inline-block;
    border-radius: 100%;
    background-color: rgb(204,204,204);
}
.rollLine{
    border-top: 4px dashed rgb(204,204,204);
    flex: 1;
    width: 100%;
    position: absolute;
    left: 50%;
    top: 50%;
    z-index: -1;
}