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