Element block pseudo-class :active generated with display block transition outline none box-sizing content-box padding 20px background font-size 18px margin 9px opacity 1 float none cursor default text-shadow 1px 1px 1px rgba(0,0,0,0.2) box-shadow 1px 1px 1px rgba(0,0,0,0.3) font-weight normal border-radius line-height 5 position relative width 160px height auto overflow hidden z-index auto transform border 0px rgba(0,0,0,1) solid