update css file

Author: dabeng

README.md

@@ -1,6 +1,6 @@
 ![OrgChart](http://dabeng.github.io/OrgChart/img/orgchart-heading.png)
 
-###### It's a simple and direct organization chart plugin. Anytime you want a tree-like chart, you can turn to OrgChart.
+##### It's a simple and direct organization chart plugin. Anytime you want a tree-like chart, you can turn to OrgChart.
 
 ## Foreword
 - First of all, thanks a lot for [wesnolte](https://github.com/wesnolte)'s great work:blush: -- [jOrgChart](https://github.com/wesnolte/jOrgChart). The thought that using nested tables to build out the tree-like orgonization chart is amazing. This idea is more simple and direct than its counterparts based on svg.

bower.json

@@ -1,6 +1,6 @@
 {
   "name": "orgchart",
-  "version": "1.1.1",
+  "version": "1.1.2",
   "homepage": "https://github.com/dabeng/OrgChart",
   "authors": [
     "dabeng <dabeng413@gmail.com>"

dist/css/jquery.orgchart.css

@@ -101,17 +101,20 @@
 
 .orgchart td.right {
   border-right: 1px solid rgba(217, 83, 79, 0.8);
+  float: none;
 }
 
 .orgchart td.left {
   border-left: 1px solid rgba(217, 83, 79, 0.8);
+  float: none;
 }
 
 .orgchart td>.down {
   background-color: rgba(217, 83, 79, 0.8);
   margin: 0px auto;
   height: 20px;
   width: 2px;
+  float: none;
 }
 
 /* node styling */

examples/css/jquery.orgchart.css

@@ -101,17 +101,20 @@
 
 .orgchart td.right {
   border-right: 1px solid rgba(217, 83, 79, 0.8);
+  float: none;
 }
 
 .orgchart td.left {
   border-left: 1px solid rgba(217, 83, 79, 0.8);
+  float: none;
 }
 
 .orgchart td>.down {
   background-color: rgba(217, 83, 79, 0.8);
   margin: 0px auto;
   height: 20px;
   width: 2px;
+  float: none;
 }
 
 /* node styling */

package.json

@@ -1,6 +1,6 @@
 {
   "name": "orgchart",
-  "version": "1.1.1",
+  "version": "1.1.2",
   "description": "Simple and direct organization chart(tree-like hierarchy) plugin based on pure DOM and jQuery.",
   "main": "./dist/js/jquery.orgchart.js",
   "style": [