Microsoft® SharePoint® Designer 2010 Unleashed

Main CSS Files

When SharePoint 2010 is deployed, CSS files are installed on the Web front-end server. These CSS files are referred to as the uncustomized version of CSS files used by SharePoint 2010, which, like other files in SharePoint, is an important consideration when working with and customizing CSS in SharePoint Designer. When SharePoint pages are rendered in the browser, by default, SharePoint draws from the CSS files on the Web front-end server.

As already mentioned, the main CSS file used by SharePoint 2010 sites is named corev4.css. If you worked with SharePoint 2007 then you might be familiar with the fact that SharePoint 2007 sites used a similar CSS file named core.css. Like core.css, corev4.css includes about 7,000 lines of code ...