diff --git a/src/ui/web/css/form.css b/src/ui/web/css/form.css
index e9771611..bdb47bec 100644
--- a/src/ui/web/css/form.css
+++ b/src/ui/web/css/form.css
@@ -18,6 +18,7 @@ limitations under the License.
 .form input {
   display: block;
   width: 100%;
+  min-width: 0;
   box-sizing: border-box;
 }