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