delete max-length attribute
It's repeat with maxlength, and not support in iOS.
diff --git a/docs/docs/components/input.md b/docs/docs/components/input.md
index f42fa45..df4ba98 100644
--- a/docs/docs/components/input.md
+++ b/docs/docs/components/input.md
@@ -24,8 +24,6 @@
* `lines`: makes the input exactly this many lines tall.
-* `max-length`: constrain edits not to make the length of the text greater than the specified length.
-
* `max` constrain the max date when `type` is `date`, format is `yyyy-MM-dd`
* `min` constrain the min date when `type` is `date`, format is `yyyy-MM-dd`
