HTML will resolve conflicting styles by using the most specific declaration. In this case, the style of the row group will take precedence over the style of the column group.
What is column group?
Column group is a feature of HTML5 and CSS3 which allows web developers to group elements together into columns. This allows for more efficient styling and formatting of webpages, and makes creating complex layouts much simpler. For example, a developer could use column groups to create a two column layout, where the left column contains a menu and the right column contains the main content. Column groups also allow developers to create grids, which are helpful for creating dynamic, data-driven webpages. Additionally, column groups can be used to create responsive designs, where the layout adjusts depending on the size of the user's device. In short, column groups provide an effective and efficient way to create complex web page layouts.
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