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