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