Element block pseudo-class :active generated with z-index auto position static box-sizing content-box display block padding 20px margin 0px height auto font-weight normal overflow hidden cursor default width 160px box-shadow 1px 1px 1px rgba(0,0,0,0.3) text-shadow 1px 1px 1px rgba(0,0,0,0.2) border 0px rgba(0,0,0,1) solid line-height 1 float none border-radius background transform font-size 16px transition