Pull request #3124: 无jira任务 body里通用样式font-size还是12px

Merge in VISUAL/fineui from ~IMP/fineui_fui:master to master

* commit '757ee3eb4f47cdb1bf295451f229ad0bb4acf1f0':
  无jira任务 body里通用样式font-size还是12px

demo/less/main.less

@@ -63,6 +63,7 @@ body {
   right: 0;
   top: 0;
   bottom: 0;
+  font-size: 1.2rem;
 }
 
 .bi-theme-dark body {
@@ -98,4 +99,4 @@ body {
 
 .bi-progress-bar-bar {
   border-radius: 2rem;
-}
+}