1 files changed, 40 insertions, 0 deletions
diff --git a/editor/editor.css b/editor/editor.css
index c8c2aeb..75d9495 100644
--- a/editor/editor.css
+++ b/editor/editor.css
@@ -392,3 +392,43 @@ li.ProseMirror-selectednode:after {
   left: 0;
   top: 24px;
 }
+
+
+  .ProseMirror {
+    counter-reset: prosemirror-footnote;
+  }
+  footnote {
+    display: inline-block;
+    position: relative;
+    cursor: pointer;
+  }
+  footnote::after {
+    content: counter(prosemirror-footnote);
+    vertical-align: super;
+    font-size: 75%;
+    counter-increment: prosemirror-footnote;
+  }
+  .ProseMirror-hideselection .footnote-tooltip *::selection { background-color: transparent; }
+  .ProseMirror-hideselection .footnote-tooltip *::-moz-selection { background-color: transparent; }
+  .footnote-tooltip {
+    cursor: auto;
+    position: absolute;
+    left: -30px;
+    top: calc(100% + 10px);
+    background: silver;
+    padding: 3px;
+    border-radius: 2px;
+    width: 500px;
+  }
+  .footnote-tooltip::before {
+    border: 5px solid silver;
+    border-top-width: 0px;
+    border-left-color: transparent;
+    border-right-color: transparent;
+    position: absolute;
+    top: -5px;
+    left: 27px;
+    content: " ";
+    height: 0;
+    width: 0;
+  }