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