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