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