Customizing Master Pages
Just like customizing other pages throughout SharePoint 2010 sites, it is possible to customize SharePoint 2010 master pages. By customizing, I mean the process of using SharePoint Designer to modify out-of-the-box templates, such as Web part page templates and CSS files, like the corev4.css file. When you save modified templates in SharePoint Designer, those templates no longer inherit from their original templates on the SharePoint Web front-end and the customized file is saved to the SharePoint content database. See Chapter 11, “Understanding SharePoint Designer Editing Features,” for further information about the process of page and template customization in SharePoint 2010.
In terms of master pages, if you open one ...
Get Microsoft® SharePoint® Designer 2010 Unleashed now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.