.chapters-list-container{
    width: 100%;
    margin: 100px auto;
    line-height: 1.5;
}

.select__chapter__btn{
    cursor: pointer;
    margin: 50px;
    font-size: 20px;
    background-color: #0D6EFD;
    color: white;
    text-transform: uppercase;
}

.select__chapter__btn:hover{
    opacity: 0.7;
    text-decoration: underline;
}

.select__chapter__btn a{
    color: white;
}

.select__chapter__btn a:hover{
    color: white;
    text-decoration: none;
}

.chapter__lists{
    text-align: center;
    margin-top: 70px;
}


@media(min-width: 900px){
    .chapters-list-container{
        width: 50%;
        margin: 100px auto;
        line-height: 1.5;
    }
}