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