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