Element block pseudo-element :before generated with height 0px font-weight normal opacity 1 transition overflow visible text-shadow transform cursor default border-radius font-size 100% outline none box-sizing content-box margin 0px padding 0px background z-index auto border 50px rgba(0,0,0,0) solid position relative line-height normal display block box-shadow 1px 1px 1px rgba(0,0,0,0.3) width 0px float none