Element block pseudo-class :active generated with height auto transition font-size 16px box-sizing content-box margin 0px display block border 0px rgba(0,0,0,1) solid line-height 1 transform z-index auto overflow hidden background border-radius position static font-weight normal text-shadow 1px 1px 1px rgba(0,0,0,0.2) padding 20px box-shadow 5px 5px 5px rgba(0,0,0,0.3) float none cursor default width 160px