ho to convert submit button html code to RoR

[11175]

Hi all

this is my html code:

<input type="submit" value="Submit" class="submit" />

I want to convert it to RoR

<%= submit_tag 'Submit' %>

Where do I add the class="submit" in RoR?

thanks

[Erol_Fornoles]

<%= submit_tag 'Submit', :class => 'submit' %>