joplin/packages/app-desktop/gui/styles/popup-notification-item.scss

@keyframes slide-in {
	from {
		opacity: 0;
		transform: translateY(25%);
	}
	to {
		opacity: 1;
		transform: translateY(0);
	}
}

@keyframes slide-out {
	from {
		opacity: 1;
		transform: translateY(0);
	}
	to {
		opacity: 0;
		transform: translateY(25%);
	}
}

@keyframes grow {
	from {
		transform: scale(0);
	}
	to {
		transform: scale(1);
	}
}

.popup-notification-item {
	margin: 12px;
	padding: 13px 15px;
	border-radius: 4px;

	overflow: clip;
	position: relative;
	display: flex;
	align-items: center;

	box-shadow: 0 3px 7px 0px rgba(0, 0, 0, 0.25);

	--text-color: var(--joplin-color5);
	--ripple-color: var(--joplin-background-color5);
	background-color: color-mix(in srgb, var(--ripple-color) 20%, transparent 70%);
	color: var(--text-color);

	animation: slide-in 0.3s ease-in both;

	> .icon {
		font-size: 14px;
		text-align: center;

		width: 24px;
		height: 24px;
		// Make the line hight slightly larger than the icon size
		// to vertically center the text
		line-height: 26px;

		margin-inline-end: 13px;
		border-radius: 50%;

		color: var(--ripple-color);
		background-color: var(--text-color);
	}

	> .content {
		padding: 10px 0;
		max-width: min(280px, 70vw);
		font-size: 1.1em;
		font-weight: 500;
	}

	> .ripple {
		--ripple-size: 500px;

		position: absolute;
		transform-origin: bottom right;
		top: calc(var(--ripple-size) / -2);
		right: -40px;
		z-index: -1;

		background-color: var(--ripple-color);
		width: var(--ripple-size);
		height: var(--ripple-size);
		border-radius: calc(var(--ripple-size) / 2);

		transform: scale(0);
		animation: grow 0.4s ease-out forwards;
	}

	&.-dismissing {
		// Animate the icon and content first
		animation: slide-out 0.25s ease-out both;
		animation-delay: 0.25s;

		& > .content, & > .icon {
			animation: slide-out 0.3s ease-out both;
		}
	}

	&.-success {
		--ripple-color: var(--joplin-color-correct);
	}

	&.-error {
		--ripple-color: var(--joplin-color-error);
	}

	&.-info {
		--text-color: var(--joplin-color5);
		--ripple-color: var(--joplin-background-color5);
	}

	@media (prefers-reduced-motion) {
		&, & > .content, & > .icon {
			transform: none !important;
		}

		> .ripple {
			transform: scale(1);
			animation: none;
		}
	}
}