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