Hhmi accessibility

wax-prosemirror-core/src/styles/styles.css

@@ -228,6 +228,10 @@ img.ProseMirror-separator {
 }
 
 fakecursor {
+   position: absolute;
    border-right: 1px solid black;
    display: none;
+   width: 1px;
+   height: 19px;
+   z-index: 999;
   }
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