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