.plan {
    position: absolute;
    top: 20%;
    left: 15%;
    color: #fff;
}
.plan-text{
    margin-top: 20px;
    width: 80%;
    font-size: 14px;
    color: transparent;
}
.img-box{
    position: relative;
}
.img-box img{
    width: 100%;
}
.img-box .row>*{
    margin-bottom:3%;
    /*box-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);*/
}
.introduce{
    position: absolute;
    font-size: 1.25rem;
    font-weight: bold;
    color:#fff;
    top: 25%;
    left: 5%;
}