diff --git a/changelog.md b/changelog.md
index 9e23a72dc..d9159329c 100644
--- a/changelog.md
+++ b/changelog.md
@@ -1,5 +1,6 @@
 # 更新日志
 2.0(2021-07)
+- width属性支持calc()
 - 修改了颜色选择器交互
 - 新增bi.horizontal_fill、bi.vertical_fill布局
 - 增加module定义插件版本号
diff --git a/src/case/combo/bubblecombo/combo.bubble.js b/src/case/combo/bubblecombo/combo.bubble.js
index b610cf021..dcf6f62e0 100644
--- a/src/case/combo/bubblecombo/combo.bubble.js
+++ b/src/case/combo/bubblecombo/combo.bubble.js
@@ -36,6 +36,7 @@ BI.BubbleCombo = BI.inherit(BI.Widget, {
             element: this,
             trigger: o.trigger,
             toggle: o.toggle,
+            logic: o.logic,
             container: o.container,
             direction: o.direction,
             isDefaultInit: o.isDefaultInit,
diff --git a/src/core/2.base.js b/src/core/2.base.js
index 3aa8a155b..16a4a9f70 100644
--- a/src/core/2.base.js
+++ b/src/core/2.base.js
@@ -500,7 +500,7 @@ if (!_global.BI) {
             if (typeof w === "number") {
                 return w >= 0;
             } else if (typeof w === "string") {
-                return /^\d{1,3}(\.\d)?%$/.exec(w) || w == "auto" || /^\d+px$/.exec(w);
+                return /^\d{1,3}(\.\d)?%$/.test(w) || w === "auto" || /^\d+px$/.test(w) || /^calc/.test(w);
             }
         },