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