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