Making scrollbars on HTML elements using CSS overflow properties

overflow_content.css

/*
* Make the element scroll on both x and y axes - CSS2
*/
.scroll-both {
    overflow:scroll;
}

/*
* Make the element scroll on x axis only - CSS3
*/
.scroll-x {
    overflow-x:scroll;
    overflow-y:hidden;
}

/*
* Make the element scroll on y axis only - CSS3
*/
.scroll-y {
    overflow-y:scroll;
    overflow-x:hidden;
}