udpate demo folder

.gitignore

@@ -1,7 +1,8 @@
 # compiled output
 /dist
 /demo/js
-/demo/css
+/demo/css/font-awesome.min.css
+/demo/css/jquery.orgchart.css
 /demo/fonts
 
 # Coverage directory used by tools like istanbul

demo/css/style.css

@@ -0,0 +1,26 @@
+html,body {
+  width: 100%;
+  height: 100%;
+  margin: 0;
+  padding: 0;
+}
+
+body {
+  font-family: Arial;
+  font-size: 14px;
+  line-height: 1.428571429;
+  color: #333333;
+}
+
+#chart-container {
+  position: relative;
+  display: inline-block;
+  top: 10px;
+  left: 10px;
+  height: 420px;
+  width: calc(100% - 24px);
+  border: 2px dashed #aaa;
+  border-radius: 5px;
+  overflow: auto;
+  text-align: center;
+}

package.json

@@ -1,6 +1,6 @@
 {
   "name": "orgchart",
-  "version": "2.1.7",
+  "version": "2.1.8",
   "description": "Simple and direct organization chart(tree-like hierarchy) plugin based on pure DOM and jQuery.",
   "main": "./dist/js/jquery.orgchart.min.js",
   "style": [

src/js/jquery.orgchart.js

@@ -1361,13 +1361,13 @@
       if (docWidth > docHeight) {
         doc = new jsPDF({
           orientation: 'landscape',
-          unit: 'mm',
+          unit: 'px',
           format: [docWidth, docHeight]
         });
       } else {
         doc = new jsPDF({
           orientation: 'portrait',
-          unit: 'mm',
+          unit: 'px',
           format: [docHeight, docWidth]
         });
       }