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