It's to increase readability. An ideal column width can help users to scan through the paragraph effortlessly. http://ux.stackexchange.com/questions/3618/ideal

It's to increase readability. An ideal column width can help users to scan through the paragraph effortlessly. http://ux.stackexchange.com/questions/3618/ideal-column-width-for-paragraphs-online http://ux.stackexchange.com/questions/3618/ideal-column-widt...