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