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