Element block pseudo-class :active generated with overflow hidden z-index auto font-size 16px background display block width 160px float none height auto border-radius transition font-weight normal transform border 0px rgba(0,0,0,1) solid cursor default margin 0px box-shadow 1px 1px 1px rgba(255,0,0,0.3) position static line-height 1 padding 20px box-sizing content-box text-shadow 1px 1px 1px rgba(0,0,0,0.2)