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