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