.about_page .about_timeline .about_timeline_selector .about_timeline_item.active:after {
    
        bottom: -5.84355rem;
        background-color: rgb(255, 255, 255);
    
        background-image: url('a.png');
    
        width: 3.25rem;
    
        height: 3.25rem;
    }
    .about_page .about_timeline .about_timeline_selector .about_timeline_item.active:before {
        background-color: rgba(255,255,255,0.37);
    
        width: 4.376rem;
    
        height: 4.376rem;
    
        bottom: -6.96355rem;
    }