.js-scroll{opacity:0;transition:opacity .5s}.scrolled{opacity:1;animation:slide-down .6s ease-in-out}@keyframes slide-down{0%{transform:translateY(20px)}to{transform:translateY(0)}}.hk_Airline_heng{width:200px;height:4px;background:#8f2439;border-radius:8px;margin:0 auto}