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