Function makeTooltip

static/editor.md/lib/codemirror/addon/tern/tern.js:623–629

(x, y, content)

  }

  function makeTooltip(x, y, content) {
    var node = elt("div", cls + "tooltip", content);
    node.style.left = x + "px";
    node.style.top = y + "px";
    document.body.appendChild(node);
    return node;
  }

  function remove(node) {
    var p = node && node.parentNode;