.loader{border:4px solid #eee;border-top:4px solid #0070c9;width:40px;height:40px;border-radius:50%;animation:spin 1s linear infinite;margin:20px auto}@keyframes spin{100%{transform:rotate(360deg)}}.tracking-history{list-style:none;padding:0}.tracking-history li{padding:12px;border-left:3px solid #0070c9;margin-bottom:10px;background:#f9f9f9}