.btc-chapter-slider{

    position:relative;

    width:100%;

    overflow:hidden;

}

.btc-slider-track{

    display:flex;

    transition:.5s ease;

}

.btc-slide{

    min-width:100%;

}

.btc-slide img{

    width:100%;

    display:block;

    border-radius:18px;

}

.btc-slider-prev,
.btc-slider-next{

    position:absolute;

    top:50%;

    transform:translateY(-50%);

    width:48px;

    height:48px;

    border:none;

    border-radius:50%;

    background:rgba(0,0,0,.6);

    color:#fff;

    cursor:pointer;

    z-index:10;
}

.btc-slider-prev{

    left:20px;

}

.btc-slider-next{

    right:20px;

}

@media(max-width:768px){

    .btc-slider-prev,
    .btc-slider-next{

        width:40px;

        height:40px;
    }

}