Change Height of Main Banner

How can i change the height of the main banner displayed on the frontpage of CS-Cart v3?

Thanks for any help


.header {

background: none repeat scroll 0 0 #FFFFFF;

border-radius: 3px 3px 0 0;

box-shadow: 0 0 15px rgba(0, 0, 0, 0.3);

margin: 0;

min-height: 181px; [color=#ff0000]<<<<------ change this [/color]

width: 980px;


I can't find this in the styles.css. What path is the styles.css located?


In customer.