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