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