jade/support/stylus/test/cases/parent.styl

Jade template engine

dim-on-hover()
  -webkit-transition opacity 1s ease-out
  &:hover
    opacity 2

.button
  padding 5px
  dim-on-hover()

textarea
input
  color #A7A7A7
  &:hover
    color #000

.dim
  opacity .2
  &:hover
  &.show
    opacity 1

box-shadow()
  -webkit-box-shadow arguments
  -moz-box-shadow arguments
  box-shadow arguments
  html.ie8 &,
  html.ie7 & foo,
  html.ie6 &
    border solid 1px arguments[length(arguments) - 1]

body
  #login
    box-shadow 1px 1px 3px #eee