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