You can collapse and expand code fragments so that you can view different sections of your document without having to use the scroll bar. For example, to see all of the CSS rules in the head tag that apply to a div tag farther down the page, you can collapse everything between the head tag and the div tag so that you can see both sections of code at once. Although you can select code fragments by making selections in Design view or Code view, you can collapse code only in Code view.