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