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