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