Element block pseudo-class :active generated with line-height 1 box-shadow 1px 1px 1px rgba(0,0,0,0.3) overflow hidden padding 20px margin 0px float none cursor default width 160px border 2px rgba(0,0,0,1) solid box-sizing content-box border-radius font-size 16px text-shadow 1px 1px 1px rgba(0,0,0,0.2) z-index auto display block transition height auto background font-weight normal position static transform