Prevent “overscrolling” of web page

Question

In Chrome for Mac, one can \"overscroll\" a page (for lack of a better word), as shown in the screenshot below, to see \"what\'s behind\", similar to the iPad or iPhone.

Answer 1

html,body {
    width: 100%;
    height: 100%;
}
body {
    position: fixed;
    overflow: hidden;
}