diff --git a/dist/demo.js b/dist/demo.js
index ea87e3236..8459a5aec 100644
--- a/dist/demo.js
+++ b/dist/demo.js
@@ -11014,111 +11014,6 @@ BI.shortcut("demo.tmp", Demo.Func);
     });
 
     BI.shortcut("demo.fix_global_watcher", Demo.Fix);
-}());(function () {
-    var State = BI.inherit(Fix.Model, {
-        state: function () {
-            return {
-                name: "原始属性",
-                info: {
-                    age: 12,
-                    sex: "male",
-                    birth: {
-                        year: 2018,
-                        month: 9,
-                        day: 11
-                    }
-                },
-                career: [{
-                    a: 1,
-                    b: 2,
-                    c: 3
-                }]
-            };
-        },
-        computed: {
-            b: function () {
-                return this.model.name + "-计算属性";
-            },
-            birth: function () {
-                return this.model.info.birth;
-            }
-        }
-    });
-
-    Demo.Fix = BI.inherit(BI.Widget, {
-        _store: function () {
-            return new State();
-        },
-        watch: {
-            b: function () {
-                this.button.setText(this.model.b);
-            },
-            "birth.**": function () {
-                console.log(123);
-            }
-        },
-        render: function () {
-            var self = this;
-            return {
-                type: "bi.vertical",
-                items: [{
-                    el: {
-                        type: "bi.button",
-                        ref: function () {
-                            self.button = this;
-                        },
-                        handler: function () {
-                            self.model.name = "这是改变后的属性";
-                        },
-                        text: this.model.b
-                    }
-                }, {
-                    el: {
-                        type: "bi.button",
-                        ref: function () {
-                            self.button = this;
-                        },
-                        handler: function () {
-                            self.model.birth.year = 2019;
-                        },
-                        text: "birthYearButton"
-                    }
-                }, {
-                    el: {
-                        type: "bi.button",
-                        ref: function () {
-                            self.button = this;
-                        },
-                        handler: function () {
-                            self.model.career.push({
-                                year: 2017,
-                                month: 3,
-                                day: 24
-                            });
-                        },
-                        text: "careerAddButton"
-                    }
-                }, {
-                    el: {
-                        type: "bi.button",
-                        ref: function () {
-                            self.button = this;
-                        },
-                        handler: function () {
-                            self.model.career[0].a = 24;
-                        },
-                        text: "careerChangeButton"
-                    }
-                }]
-            };
-        },
-        mounted: function () {
-
-
-        }
-    });
-
-    BI.shortcut("demo.fix_immutable", Demo.Fix);
 }());/**
  * @Author: Young
  * @CreationDate 2017-11-06 10:32
diff --git a/src/css/case/loader/sort.css b/src/css/case/loader/sort.css
new file mode 100644
index 000000000..dd1f4dd5f
--- /dev/null
+++ b/src/css/case/loader/sort.css
@@ -0,0 +1,3 @@
+.bi-sortable-holder {
+  border: 1px dashed #d4dadd;
+}