Element block pseudo-element :after generated with display block position absolute box-shadow 1px 1px 1px rgba(0,0,0,0.3) height auto z-index auto width 160px margin 9em outline none border 5px rgba(0,0,0,1) solid padding 21px font-size 16px font-weight normal overflow hidden float none cursor default opacity 1 transform border-radius transition line-height 1 background box-sizing content-box text-shadow 1px 1px 1px rgba(0,0,0,0.2)