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