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