Element block pseudo-class :active generated with padding 16px overflow visible background line-height 1 border-radius transition font-weight normal text-shadow 1px 1px 0px rgba(255,255,255,0.2) display block font-size 16px box-shadow 0px 0px 1px rgba(0,0,0,0.5) margin 0px position static border 0px rgba(0,0,0,1) solid transform width auto height auto float none z-index auto cursor default box-sizing content-box