Add following code in text creating shortcode:
minlength:10 maxlength:540
Eg:
[textarea* textarea-910 minlength:10 maxlength:540 placeholder “Message:”]
Add following code in text creating shortcode:
minlength:10 maxlength:540
Eg:
[textarea* textarea-910 minlength:10 maxlength:540 placeholder “Message:”]