diff --git a/package.json b/package.json
index 34e1259..deb9f1e 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@vesoft-inc/veditor",
-  "version": "4.4.7-beta.9",
+  "version": "4.4.12",
   "description": "svg flow editor",
   "main": "./dist/VEditor.js",
   "types": "./types/index.d.ts",
@@ -12,7 +12,8 @@
     "makeDts": "npx -p typescript tsc -p ./dts.json",
     "build:all": "npm run build && npm run makeDts && npm run build:browser && npm run build:demo ",
     "doc": "typedoc ",
-    "watch": "webpack --watch --env browser=true --config webpack.config.build.js"
+    "watch": "webpack --watch --env browser=true --config webpack.config.build.js",
+    "postpublish": "npx cnpm sync @vesoft-inc/veditor"
   },
   "repository": {
     "type": "git",
diff --git a/src/Shape/Graph.ts b/src/Shape/Graph.ts
index 130cfd4..6dc94f4 100644
--- a/src/Shape/Graph.ts
+++ b/src/Shape/Graph.ts
@@ -2,7 +2,7 @@ import Node from "./Node";
 import Line from "./Line";
 import AnchorLine from "./AnchorLine";
 import VEditor from "../VEditor";
-import { setAttrs } from "../Utils/dom";
+import { setAttrs, svgWrapper } from "../Utils/dom";
 import { VEditorSchema } from "../Model/Schema";
 import * as Utils from "../Utils";
 const backSvg = require("../back.svg").default;
@@ -14,12 +14,15 @@ class Graph extends Utils.Event {
   anchorLine: AnchorLine;
   linkStatus: string;
   data: VEditorSchema;
+  shadow: SVGSVGElement;
+
   constructor(editor: VEditor) {
     super();
     this.editor = editor;
     this.node = new Node(this);
     this.line = new Line(this);
     this.anchorLine = new AnchorLine(this);
+    this.initDefs();
 
     this.listenEvents();
     if (this.editor.config.showBackGrid) {
@@ -152,6 +155,33 @@ class Graph extends Utils.Event {
     this.fire("update");
   }
 
+
+
+  initDefs() {
+    if(document.getElementById("ve-svg-defs")) return;
+    this.shadow = svgWrapper(
+      `<svg id="ve-svg-defs" style="position:absolute;left:-9999px;top:-9999px;" xmlns="http://www.w3.org/2000/svg">
+      <defs>
+			<filter id="ve-black-shadow" >
+                <feGaussianBlur in="SourceAlpha" stdDeviation="4"></feGaussianBlur>
+                <feGaussianBlur stdDeviation="3" />
+                <feOffset dx="0" dy="0" result="offsetblur"></feOffset>
+                <feFlood flood-color="#333333"></feFlood>
+                <feComposite in2="offsetblur" operator="in"></feComposite>
+                <feComponentTransfer>
+                    <feFuncA type="linear" slope="0.3"></feFuncA>
+                </feComponentTransfer>
+                <feMerge>
+                <feMergeNode />
+                <feMergeNode in="SourceGraphic" />
+                </feMerge>
+            </filter>
+		</defs>
+    </svg>`,
+    ) as SVGSVGElement;
+    document.body.appendChild(this.shadow);
+  }
+
   /**
    * 清空画布
    */
diff --git a/src/Shape/Lines/Line.ts b/src/Shape/Lines/Line.ts
index a30eb3d..b7ef43f 100644
--- a/src/Shape/Lines/Line.ts
+++ b/src/Shape/Lines/Line.ts
@@ -275,11 +275,13 @@ const DefaultLine: LineRender = {
     const { width, height } = line.label.textBBox;
     setAttrs(line.label.textRect, {
       fill: style.stroke,
-      width,
-      height,
+      width: width + 10,
+      height:height + 5,
       stroke: "transparent",
-      x: x - width * 0.5,
-      y: y - height-1,
+      x: x - width * 0.5 - 5,
+      y: y - height - 2.5,
+      rx: 5,
+      ry: 5,
     });
     setAttrs(labelGroup, {
       class: "ve-line-label",
diff --git a/src/Shape/Node.ts b/src/Shape/Node.ts
index d7d53c8..c83ea70 100644
--- a/src/Shape/Node.ts
+++ b/src/Shape/Node.ts
@@ -50,7 +50,6 @@ class Node {
   paper: SVGGElement;
   nodeG: SVGGElement;
   actives: {};
-  shadow: SVGElement;
   shapes: {
     [key: string]: NodeRender;
   };
@@ -64,7 +63,6 @@ class Node {
     this.paper = graph.editor.paper;
     this.nodeG = createSVGElement("g", this.paper) as SVGGElement;
     this.nodeG.classList.add("ve-nodes");
-    this.initDefs();
     this.listenEvent();
     this.actives = {};
     this.shapes = {
@@ -74,28 +72,6 @@ class Node {
     };
   }
 
-  initDefs() {
-    this.shadow = svgWrapper(
-      `<defs>
-			<filter id="ve-black-shadow" filterUnits="userSpaceOnUse">
-                <feGaussianBlur in="SourceAlpha" stdDeviation="4"></feGaussianBlur>
-                <feGaussianBlur stdDeviation="3" />
-                <feOffset dx="0" dy="0" result="offsetblur"></feOffset>
-                <feFlood flood-color="#333333"></feFlood>
-                <feComposite in2="offsetblur" operator="in"></feComposite>
-                <feComponentTransfer>
-                    <feFuncA type="linear" slope="0.3"></feFuncA>
-                </feComponentTransfer>
-                <feMerge>
-                <feMergeNode />
-                <feMergeNode in="SourceGraphic" />
-                </feMerge>
-            </filter>
-		</defs>`,
-      this.paper
-    );
-  }
-
   // 监听事件
   listenEvent() {
     this.graph.on("paper:click", () => {
@@ -479,7 +455,7 @@ class Node {
 
   unActiveNode(node: InstanceNode) {
     node.dom.classList.remove("active");
-    setAttrs(node.dom, {
+    setAttrs(node.shape, {
       filter: null,
     });
   }