form text field width

Hello,
I haven't succeed in finding how to modify the width of the text input field.
something like :
<input type="text" name="text" style="width:200>
or
<input type="text" name="text" class="text" >
but how to modify the text class ?

Could you help ?
Thanks

Looking at your examples, are you adding units to the end of the width declaration? i.e.

Code:

---

<input type="text" name="text" style="width: 200px;" />

---

thanks a lot for repliyng Medianomaly,

I have found an anwer for my own question :
In fact a solution is to modif the css file wich is linked with the form :
the text class is modified with the "width "parameter (the size of my input text)
have a good day