astro/packages/astro/components/viewtransitions.css

@keyframes astroFadeInOut {
	from {
		opacity: 1;
	}
	to {
		opacity: 0;
	}
}

@keyframes astroFadeIn {
	from {
		opacity: 0;
	}
}

@keyframes astroFadeOut {
	to {
		opacity: 0;
	}
}

@keyframes astroSlideFromRight {
	from {
		transform: translateX(100%);
	}
}

@keyframes astroSlideFromLeft {
	from {
		transform: translateX(-100%);
	}
}

@keyframes astroSlideToRight {
	to {
		transform: translateX(100%);
	}
}

@keyframes astroSlideToLeft {
	to {
		transform: translateX(-100%);
	}
}