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