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