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