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