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