When min-height (or minimum height) is set on a design block, it will always be at least that height in your design.
Min-height can be set on specific blocks (i.e. boxes) by dragging and resizing downward on the bottom line.
Min-height can be used in a positive way to give necessary space to a layout or design. However, if the content inside of a Box has a dynamic height (such as product or category lists), min-height could create unwanted blank space in your layout or design. In this case, you will want to remove the min-height if it is set.
Min-height can be removed by clicking the "Remove" link in the orange min-height notification bar.
Updated over 4 years ago