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