How to use Compass Animation for Compass SCSS framework?

Question

I am trying to use compass animation, but it doesn't seem to work.

Here are how my files are set up:

Config.rb

# Require any additional compass plugins here.
require 'animation'

Screen.scss

@import "compass";
@import "compass/reset";
@import "animation";
@import "animation/animate";
@import "animation/animate/classes";


.widget:hover {
    @include animation(flipOutY);
    background:pink;
}

body {
    background:red;
}

Index.html

<a href="#" class="widget">Click Me</a>

This is the output of my css:

@-moz-keyframes flipOutY {
  /* line 79, ../../../../../../../../Library/Ruby/Gems/1.8/gems/animation-0.1.alpha.3/stylesheets/animation/animate/_flippers.scss */
  0% {
    -moz-transform: perspective(400px) rotateY(0deg);
    transform: perspective(400px) rotateY(0deg);
    filter: progid:DXImageTransform.Microsoft.Alpha(Opacity=100);
    opacity: 1; }

  /* line 83, ../../../../../../../../Library/Ruby/Gems/1.8/gems/animation-0.1.alpha.3/stylesheets/animation/animate/_flippers.scss */
  100% {
    -moz-transform: perspective(400px) rotateY(90deg);
    transform: perspective(400px) rotateY(90deg);
    filter: progid:DXImageTransform.Microsoft.Alpha(Opacity=0);
    opacity: 0; } }

@-webkit-keyframes flipOutY {
  /* line 79, ../../../../../../../../Library/Ruby/Gems/1.8/gems/animation-0.1.alpha.3/stylesheets/animation/animate/_flippers.scss */
  0% {
    -webkit-transform: perspective(400px) rotateY(0deg);
    transform: perspective(400px) rotateY(0deg);
    filter: progid:DXImageTransform.Microsoft.Alpha(Opacity=100);
    opacity: 1; }

  /* line 83, ../../../../../../../../Library/Ruby/Gems/1.8/gems/animation-0.1.alpha.3/stylesheets/animation/animate/_flippers.scss */
  100% {
    -webkit-transform: perspective(400px) rotateY(90deg);
    transform: perspective(400px) rotateY(90deg);
    filter: progid:DXImageTransform.Microsoft.Alpha(Opacity=0);
    opacity: 0; } }

@-o-keyframes flipOutY {
  /* line 79, ../../../../../../../../Library/Ruby/Gems/1.8/gems/animation-0.1.alpha.3/stylesheets/animation/animate/_flippers.scss */
  0% {
    -o-transform: perspective(400px) rotateY(0deg);
    transform: perspective(400px) rotateY(0deg);
    filter: progid:DXImageTransform.Microsoft.Alpha(Opacity=100);
    opacity: 1; }

  /* line 83, ../../../../../../../../Library/Ruby/Gems/1.8/gems/animation-0.1.alpha.3/stylesheets/animation/animate/_flippers.scss */
  100% {
    -o-transform: perspective(400px) rotateY(90deg);
    transform: perspective(400px) rotateY(90deg);
    filter: progid:DXImageTransform.Microsoft.Alpha(Opacity=0);
    opacity: 0; } }

@-ms-keyframes flipOutY {
  /* line 79, ../../../../../../../../Library/Ruby/Gems/1.8/gems/animation-0.1.alpha.3/stylesheets/animation/animate/_flippers.scss */
  0% {
    -ms-transform: perspective(400px) rotateY(0deg);
    transform: perspective(400px) rotateY(0deg);
    filter: progid:DXImageTransform.Microsoft.Alpha(Opacity=100);
    opacity: 1; }

  /* line 83, ../../../../../../../../Library/Ruby/Gems/1.8/gems/animation-0.1.alpha.3/stylesheets/animation/animate/_flippers.scss */
  100% {
    -ms-transform: perspective(400px) rotateY(90deg);
    transform: perspective(400px) rotateY(90deg);
    filter: progid:DXImageTransform.Microsoft.Alpha(Opacity=0);
    opacity: 0; } }

@keyframes flipOutY {
  /* line 79, ../../../../../../../../Library/Ruby/Gems/1.8/gems/animation-0.1.alpha.3/stylesheets/animation/animate/_flippers.scss */
  0% {
    transform: perspective(400px) rotateY(0deg);
    filter: progid:DXImageTransform.Microsoft.Alpha(Opacity=100);
    opacity: 1; }

  /* line 83, ../../../../../../../../Library/Ruby/Gems/1.8/gems/animation-0.1.alpha.3/stylesheets/animation/animate/_flippers.scss */
  100% {
    transform: perspective(400px) rotateY(90deg);
    filter: progid:DXImageTransform.Microsoft.Alpha(Opacity=0);
    opacity: 0; } }

.widget:hover {
-webkit-animation: flipOutY;
-moz-animation: flipOutY;
-ms-animation: flipOutY;
-o-animation: flipOutY;
animation: flipOutY;
background: pink;
}

However, it doesn't seem to be working. Could someone explain what I am doing wrong. Thanks!

Answer 1

I think a duration is required in order for this to work. That's a mistake in the README.

(You should also note that Compass Animation isn't really being maintained any longer - as it is moving into the Compass Core for 0.13 release. I recommend using the master branch of Compass, and Compass-Animate instead. Those are better maintained.)