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