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