Element block pseudo-element :before generated with overflow hidden box-sizing content-box border-radius text-shadow 1px 1px 1px rgba(0,0,0,0.2) height auto margin 30px transition display block cursor default float none border 0px rgba(0,0,0,1) solid line-height 1 font-size 16px background padding 20px position static transform z-index auto width 160px box-shadow 1px 1px 1px rgba(0,0,0,0.3) font-weight bold