Breaks happen in both paged and unpaged documents. For example, text is broken into lines, and the text in a block that has column-count greater than 1 may be broken into columns. However, and unsurprisingly, breaks are more common, and more of a concern, when a run of text is also broken across pages. There are properties for forcing or avoiding breaks within or between elements. Additionally, the widows and orphans properties control the minimum number of lines of text before or after a break in a block of text.