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