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