Animate.scss

Sass 3.3 is required to use Animate.scss

Based on the wildly popular Animate.css by @daneden Animate.scss is a SASS-version of that same library.

What is it?

Animate.scss is a collection of fun, easy-to-use css animations for your project. There great to draw attention to objects, sliders and other awe-inspiring effects on your site.

How to

Just drop animate.scss into your project, import it into your main stylesheet and include one of the mixins in a selector that you want to animate.

Why SASS 3.3?

On of the great additions to SASS 3.3 is the @at-root function, which lets you put rules att the root of your file, even from within selectors or mixins. This makes it possible to write mixins that outputs @keyframes that we can use to animate. Take the bounce-effect for example:

@mixin bounce($duration: $global-duration, $function: $global-function, $delay: $global-delay, $count: $global-count, $fill: $global-fill, $visibility: $global-visibility) {
	@include animation(bounce $duration $function $delay $count $fill);
	@include visibility($visibility);

	@at-root {
		@include keyframes(bounce) {
			0%, 20%, 50%, 80%, 100% {
				@include transform(translateY(0px));
			}
			40% {
				@include transform(translateY(-30px));
			}
			60% {
				@include transform(translateY(-15px));
			}
		}
	}
}

So when you want to bounce something on your screen you just include that in a selecter, say a button:

.bouncing-button {
	@include bounce();
}

Run it through SASS and the resulting CSS will be:

.bouncing-button {
	-webkit-animation: bounce 1s ease 0.2s 1 both;
	-moz-animation: bounce 1s ease 0.2s 1 both;
	animation: bounce 1s ease 0.2s 1 both;
	-webkit-animation-backface-visibility: hidden;
	-moz-animation-backface-visibility: hidden;
	-ms-animation-backface-visibility: hidden;
	-o-animation-backface-visibility: hidden;
	animation-backface-visibility: hidden;
}

@-webkit-keyframes bounce {
	0%, 20%, 50%, 80%, 100% {
		-webkit-transform: translateY(0px);
	}
	40% {
		-webkit-transform: translateY(-30px);
	}
	60% {
		-webkit-transform: translateY(-15px);
	}
}

@-moz-keyframes bounce {
	0%, 20%, 50%, 80%, 100% {
		-moz-transform: translateY(0px);
	}
	40% {
		-moz-transform: translateY(-30px);
	}
	60% {
		-moz-transform: translateY(-15px); }
	}

@-o-keyframes bounce {
	0%, 20%, 50%, 80%, 100% {
		-o-transform: translateY(0px);
	}
	40% {
		-o-transform: translateY(-30px);
	}
	60% {
		-o-transform: translateY(-15px); }
	}

@keyframes bounce {
	0%, 20%, 50%, 80%, 100% {
		-webkit-transform: translateY(0px);
		transform: translateY(0px);
	}
 	40% {
		-webkit-transform: translateY(-30px);
		transform: translateY(-30px);
	}
	60% {
		-webkit-transform: translateY(-15px);
		transform: translateY(-15px); }
	}

Whoa, hold up! That's a lot of code dude!

Yeah, I know it looks kind of bloated. But that's due to the state of CSS animations and browser vendors. It need a whole lot of prefixing... And that's also the reason why Daniel's original project is close to 3500 lines of CSS, or 50-some kb minified.

And here's the biggest reason why SASS 3.3 is perfect for this project - it gives you easy access to all animations without bloating your code or forcing you to make that extra HTTP-request. It just includes the animations that you actually use, nothing more and nothing less.

The catch

The only downside to animate.scss is that you need SASS 3.3 installed. But that should be installed anyway if you're into web development...

Credit

• @daneden for the original concept in animate.css
• @jackilyn for the scss port of Daniel's work

License

WFTPL

Tested in Chrome, Safari, Firefox and Mobile Safari