Element block pseudo-class :active generated with box-sizing content-box transition padding 20px z-index auto transform border 0px rgba(0,0,0,1) solid height auto width 160px background font-weight normal position static margin 0px font-size 16px overflow hidden float none text-shadow 1px 1px 1px rgba(0,0,0,0.2) cursor default display block border-radius line-height 1 box-shadow 2px 2px 2px rgba(0,0,0,0.5)