.Introductory{
    width: 591px;
    height: 790px;
    border: 10px #36B1EC solid;
    border-radius: 25px;
    box-shadow: 8px 8px 20px #c1c1c1;
    display: flex;
    overflow: hidden;
}
.Introductory_div{
    width: 591px;
    height: 835px;
    padding: 0;
}

.Introductory_div > img{
    margin-top: -25px;
    margin-left: 170px;
}




    .ebook_div{
        width: 366px;
        height: 536px;
    
        /*margin-right: 55px;*/
    
    }
    
    .ebook_div > img{
        margin-top: -25px;
        margin-left: 68px;
    }
    .ebook{
        width: 366px;
        height: 487px;
        border: 8px #FE6263 solid;
    
        border: 8px #36B1EC solid;
    
        border-radius: 20px;
        box-shadow: 8px 8px 20px #c1c1c1;
        display: flex;
        overflow: hidden;
    }
    .ebook > img{
        width: 350px;
        height: 471px;
        /*height: 573px;*/
    }
    .divContent >a{
        width: 366px;
        height: 536px;
        padding: 0;
        margin-bottom: 3rem;
        margin-left: 2rem;
        margin-right: 2rem;
    }