This website is designed to let you choose materials and digitally build a house. To start, just click on any of the materials in the top right corner. Let's say you choose a brick. If you click on the brick, it'll appear on the screen, and you'll need to drag it a tiny bit to attach the mouse to the brick. When dragging the brick, you should keep your mouse over the brick, and the brick will follow your mouse. But don't go too fast, or you'll lose it. Now, it's time to drag and drop until you've created your dream house!