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