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