.bookContainer{background-color:#1a202c;padding-top:50px;height:100vh;display:flex;flex-direction:column;justify-content:start;align-items:center;overflow:hidden}.nav-bar{background-color:#333;margin-top:10px;padding:10px 20px;width:1000px;display:flex;justify-content:center}.nav-list{width:400px;list-style-type:none;display:flex;align-items:center;justify-content:space-between;padding:0;height:100%}.nav-item{color:#fff;padding:10px 20px;text-decoration:none;cursor:pointer}.central-item{border:1px solid #fff;padding:5px 20px}