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