.sources-section{margin:10px auto;max-width:1100px;padding:10px 20px}#toggle-sources{background:transparent;border:none;color:#6c0;cursor:pointer;font-size:20px;padding:0}.sources-content{animation:fadeIn .3s ease-in-out;display:none}.sources-content ul{list-style-type:none;margin:10px 0 0;padding-left:20px}.sources-content li{margin-bottom:10px}.sources-content a{color:#6c0;text-decoration:underline}.sources-content a:hover{color:#8ee600;text-decoration:none}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}