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