diff --git a/www/form/app-form.less b/www/form/app-form.less
index 1a7a08cfd..562f18b68 100644
--- a/www/form/app-form.less
+++ b/www/form/app-form.less
@@ -1115,8 +1115,7 @@
                 &:first-child {
                     //overflow: auto;
                     max-width: 300px;
-                    min-width: 300px;
-                    width: 300px;
+                    min-width: 100px;
                     position: absolute;
                     word-break: break-word;
                     background: @cp_form-bg1;
@@ -1126,7 +1125,7 @@
                     visibility: hidden;
                     //overflow: auto;
                     max-width: 300px;
-                    min-width: 300px;
+                    min-width: 100px;
                     width: 300px;
                     word-break: break-word;
                 }