::view-transition-old(app-content){animation:.15s cubic-bezier(.4,0,1,1) both fade-out,.15s cubic-bezier(.4,0,.2,1) both slide-to-top}::view-transition-new(app-content){animation:.15s cubic-bezier(0,0,.2,1) 90ms both fade-in,.3s cubic-bezier(.4,0,.2,1) both slide-from-bottom}