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