The document contains the CSS code for styling a website. It includes CSS rules for styling elements like the body, header, navigation menu, slideshow, content sections, sidebar and more. Styles are defined for colors, fonts, sizes, positioning of elements and other visual properties. Gradient backgrounds and box shadows are used to style elements like the header and content sections. Images, text and blocks of content are positioned on the page in a multi-column layout with navigation, slideshow, main content and sidebar areas.