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