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