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