Gravity Forms Can not activate css code.

Hi
I need to change the form total value view. total showing on the right side pizza chef. Examples here : http://demo.gravityforms.com/build-a-pizza/
Gravity Forms support sent me the css code:

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That is just a normal total field that has been positioned over on the right with CSS. It’s not a total in a widget or anything like that. Here is the actual CSS used for that:

body #content .post .post-content .gform_wrapper li#field_5_2 {
position: fixed;
right: 30px;
top: 50px;
padding: 0 10px 10px 10px;
-webkit-border-radius: 8px;
-moz-border-radius: 8px;
border-radius: 8px;
background-color: #fff;
text-shadow: 1px 1px 1px #daf2b6;
-webkit-box-shadow: 0px 0px 5px rgba(50, 50, 50, 0.5);
-moz-box-shadow: 0px 0px 5px rgba(50, 50, 50, 0.5);
box-shadow: 0px 0px 5px rgba(50, 50, 50, 0.5);

}

You only need the first 3 rules there to position it in the top right corner. You would have to change the #field_5_2 to the ID of your total field.
Also, you may have to adjust the rest of the selectors to match the selectors that are in use in your template.

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But css code did not work. I’m doing something wrong theme.

thanks