::view-transition-group(root){animation-timing-function:var(--expo-out)}::view-transition-new(root){mask:url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 40 40"><defs><filter id="blur"><feGaussianBlur stdDeviation="2"/></filter></defs><circle cx="20" cy="20" r="18" fill="white" filter="url(%23blur)"/></svg>') center /0 no-repeat;animation:scale 1s}.dark::view-transition-old(root),::view-transition-old(root){animation:none;z-index:-1}.dark::view-transition-new(root){animation:scale 1s}@keyframes scale{to{mask-size:200vmax}}