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