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