Ceaser CSS Easing Mixin for Sass

_easing.sass

$easeInCubic    : cubic-bezier(0.550, 0.055, 0.675, 0.190)
$easeOutCubic   : cubic-bezier(0.215, 0.610, 0.355, 1.000)
$easeInOutCubic : cubic-bezier(0.645, 0.045, 0.355, 1.000)

$easeInCirc     : cubic-bezier(0.600, 0.040, 0.980, 0.335)
$easeOutCirc    : cubic-bezier(0.075, 0.820, 0.165, 1.000)
$easeInOutCirc  : cubic-bezier(0.785, 0.135, 0.150, 0.860)

$easeInExpo     : cubic-bezier(0.950, 0.050, 0.795, 0.035)
$easeOutExpo    : cubic-bezier(0.190, 1.000, 0.220, 1.000)
$easeInOutExpo  : cubic-bezier(1.000, 0.000, 0.000, 1.000)

$easeInQuad     : cubic-bezier(0.550, 0.085, 0.680, 0.530)
$easeOutQuad    : cubic-bezier(0.250, 0.460, 0.450, 0.940)
$easeInOutQuad  : cubic-bezier(0.455, 0.030, 0.515, 0.955)

$easeInQuart    : cubic-bezier(0.895, 0.030, 0.685, 0.220)
$easeOutQuart   : cubic-bezier(0.165, 0.840, 0.440, 1.000)
$easeInOutQuart : cubic-bezier(0.770, 0.000, 0.175, 1.000)

$easeInQuint    : cubic-bezier(0.755, 0.050, 0.855, 0.060)
$easeOutQuint   : cubic-bezier(0.230, 1.000, 0.320, 1.000)
$easeInOutQuint : cubic-bezier(0.860, 0.000, 0.070, 1.000)

$easeInSine     : cubic-bezier(0.470, 0.000, 0.745, 0.715)
$easeOutSine    : cubic-bezier(0.390, 0.575, 0.565, 1.000)
$easeInOutSine  : cubic-bezier(0.445, 0.050, 0.550, 0.950)

$easeInBack     : cubic-bezier(0.600, -0.280, 0.735, 0.045)
$easeOutBack    : cubic-bezier(0.175,  0.885, 0.320, 1.275)
$easeInOutBack  : cubic-bezier(0.680, -0.550, 0.265, 1.550)

=transition($prop, $duration:0.5s, $easing:$easeInOutCubic, $delay: 0s)
  -webkit-transition: $prop $duration $easing $delay
  -moz-transition: $prop $duration $easing $delay
  -ms-transition: $prop $duration $easing $delay
  -o-transition: $prop $duration $easing $delay
  transition: $prop $duration $easing $delay