Newly added in Une Boutique 2.1.5 you can now set the columns in a row to match their heights, this is useful when you are trying to make tiles out of the columns, give them a background color/image and even an overlay (which we will discuss in the next chapter of the docs) which appears on mouse hover. You can control the space between the columns by changing the padding and margin of the columns.
1) To make the columns match heights click on the edit column icon on top of the columns you want to match their heights, go to extra options and check mark the match height option.
To customize the spacing after matching the columns heights, click on the design options tab in the edit column pop up and set the paddings and margins for the columns. You can even set borders for the columns.