fix(form): input ios 16 bug #1503

src/packages/__VUE/formitem/index.scss

@@ -63,6 +63,8 @@
         border: 0;
         text-decoration: none;
         background: transparent;
+        padding: 0;
+        margin: 0;
       }
       .nut-range-container {
         min-height: 24px;