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