Wiggle!

// Wiggle wiggle wiggle (!)
// somewhat borrowed(tm) from AirBnB

@-webkit-keyframes wiggle
  from
    -webkit-transform: rotate(0deg)
  to
    -webkit-transform: rotate(2deg)
  from
    -webkit-transform: rotate(2deg)
  to
    -webkit-transform: rotate(-2deg)


@-moz-keyframes wiggle
  from
    -moz-transform: rotate(0deg)
  to
    -moz-transform: rotate(2deg)
  from
    -moz-transform: rotate(2deg)
  to
    -moz-transform: rotate(-2deg)


@-o-keyframes wiggle
  from
    -o-transform: rotate(0deg)
  to
    -o-transform: rotate(2deg)
  from
    -o-transform: rotate(2deg)
  to
    -o-transform: rotate(-2deg)


.logo:hover
  -webkit-animation: wiggle .2s 2 ease-in-out
  -moz-animation: wiggle .2s 2 ease-in-out
  -o-animation: wiggle .2s 2 ease-in-out

  opacity: .85
  -ms-filter: "alpha(opacity=85)"
  filter: alpha(opacity=85)

.logo:active
  opacity: 1
  -ms-filter: "alpha(opacity=100)"
  filter: alpha(opacity=100)