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