修改样式

src/css/knowledgeMap.less

@@ -228,6 +228,7 @@
                 width: 11px;
                 position: absolute;
                 top: 18px;
+                right: 0px;
             }
             .toggleTab{
                 display: inline-block;

src/css/knowledgeTree.less

@@ -228,6 +228,7 @@
                 width: 11px;
                 position: absolute;
                 top: 18px;
+                right: 0px;
             }
             .toggleTab{
                 display: inline-block;