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