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