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