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