How to limit input text length using CSS3? [duplicate]

Question

Possible Duplicate:
Can I specify maxlength in css?

In my CSS I use this code to make round borders for all the input tags in my site. I wonder if it is possible to limit the lenght of the input in the same way (for example 50 characters)

input  
{ 
border-radius: 10px;
-moz-border-radius: 10px;
-khtml-border-radius: 10px;
-webkit-border-radius: 10px;
}

I imagine something like (this is not working):

input
{
max-lenght: 50;
} 

Any sugestions? Thank you very much!

EDIT: This question is about how many characters can the user write into the field, not the visible size of the input

Answer 1

You cannot use CSS to limit the number of input characters. That would be a functional restriction, and CSS deals with presentation.