diff --git a/components/form/style/index.less b/components/form/style/index.less
index 86f4d312d..ea28ad120 100644
--- a/components/form/style/index.less
+++ b/components/form/style/index.less
@@ -102,7 +102,7 @@
     // formItem 的 span 属性，占据的列数
     each(range(24), {
         .@{form-item-cls}-span-@{value} {
-            grid-column: span @value / span @value;
+            grid-column: span @value;
         }
     });
 }
diff --git a/components/modal/style/index.less b/components/modal/style/index.less
index 2171748ce..5cc5157ba 100644
--- a/components/modal/style/index.less
+++ b/components/modal/style/index.less
@@ -130,6 +130,8 @@
         padding: @padding-xs 0;
         color: var(--f-sub-head-color);
         font-size: var(--f-font-size-base);
+        overflow: hidden;
+        word-break: break-all;
     }
 
     &-footer {