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