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