@keyframes border-travel{0%{clip-path:inset(0 100% 0 0)}25%{clip-path:inset(0 0 100% 0)}50%{clip-path:inset(0 0 0 100%)}75%{clip-path:inset(100% 0 0 0)}to{clip-path:inset(0 100% 0 0)}}.animate-travel{animation:border-travel 3s linear infinite}