The column-span CSS property makes it possible for an element to span across all columns when its value is set to all. An element that spans more than one column is called a spanning element.


The element does not span multiple columns.
The element spans across all columns. Content in the normal flow that appears before the element is automatically balanced across all columns before the element appears. The element establishes a new block formatting context.

<!DOCTYPE html>
            .myCSSStyle {
				-moz-column-count:3; /* Firefox */
				-webkit-column-count:3; /* Safari and Chrome */
					-webkit-column-span:all; /* Chrome */
            Internet Explorer and Firefox do not support the columns
        <div class="myCSSStyle">
            <h1> the quick brown red fox jumps over the lazy dog</h1>
            On the Insert tab, the galleries include items that 
			are designed to coordinate with the overall look of your 
			document. You can use these galleries to insert tables, 
			headers, footers, lists, cover pages, and other document 
			building blocks.
			When you create pictures, charts, or diagrams, they also 
			coordinate with your current document look.You can easily 
			change the formatting of selected text in the document 
			text by choosing a look for the selected text from the 
			Quick Styles gallery on the Home tab. You can also format 
			text directly by using the other controls on the Home tab.
            Most controls offer a choice of using the look from the 
			current theme or using a format that you specify directly.
            To change the overall look of your document, choose new 
			Theme elements on the Page Layout tab. To change the 
			looks available in the Quick Style gallery, use the 
			Change Current Quick Style Set command. Both the Themes 
			gallery and the Quick Styles gallery provide reset commands 
			so that you can always restore the look of your document  
            to the original contained in your current template.