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