Merge pull request #211831 in DEC/fineui from master to feature/x

* commit 'dc63d48a31f33ecc3a05444fb7abd8ca799bc6af':
  BI-118754 fix(getMinimumFontSize): 获取最小字号无效

src/core/platform/web/function.js

@@ -140,8 +140,9 @@ BI._.extend(BI, {
     },
 
     getMinimumFontSize: function () {
+        // not work for firefox
         const el = document.createElement('div');
-        el.style.fontSize = "0px";
+        el.style.fontSize = "1px";
         document.body.appendChild(el);
         const size = getComputedStyle(el).fontSize;
         el.remove();