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