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