.book-depth-2{
    border-top: 2px solid black;
    border-bottom: 2px solid black;
    // background-color: yellowgreen;
    h1{
        text-transform: uppercase;
        text-align: center;
    }
}

.book-depth-3{
    // border-top: 3px double black;
    // border-bottom: 3px double black;
    h1{
        text-transform: uppercase;
        border-top: 4px double black;
        border-bottom: 4px double black;
    }
}

.book-depth-4{
    // border-top: 3px double black;
    // border-bottom: 3px double black;
    h1{
        text-transform: uppercase;
        border-top: 2px solid black;
        border-bottom: 2px solid black;
    }
}

.book-depth-5{
    // border-top: 3px double black;
    // border-bottom: 3px double black;
    h1{
        text-transform: uppercase;
        border-top: 2px dotted black;
        border-bottom: 2px dotted black;
    }
}