 the RAM technique, which stands for repeat auto and min max. The line of code here looks like this. You have the grid template columns, repeat auto fit min max, the base value, and then 1FR for a fractional unit. As we increase the size, these elements are going to fit to take up the space. As I decrease it, they're going to hit this 150 base value, and then they're going to wrap onto the next line. But here we have them auto fitting, so they're going to be spanning to take up as much space as they can. Now, if we change this to auto fill, as I increase the size, it's not going to be spanning and stretching to take up the remainder of the space. It's actually going to be using that 150 pixels as a baseline. And I use this technique on the page that you're looking at here itself so that these two segments would stretch and shrink but not exceed a specific space that I wanted them to, and then I have them centered within the parent as it spreads to a larger size. I like to call this