.scroll-content__item .accordion-button:after{background-color:var(--color-10);background-image:url(/images/cong.png);left:0;margin-left:0;position:absolute;top:45%;transition:all .5s}.scroll-content__item .accordion-button:not(.collapsed):after{background-color:var(--color-2);background-image:url(/images/tru.png);background-position:bottom}.scroll-content__item .accordion-button:not(.collapsed){background-color:var(--color-10)}