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