It’s very easy to create an awesome mobile-friendly site using the Mobirise Website Builder tool.
Open the app to see a big red “Click to start” arrow pointing to the plus button. If you click on it, you’ll see the blocks list. If you need some of these blocks on your page, simply drag it to it. Please note, that the pure css menu block and the footer block can be located only at the top and the bottom of your page. Next to the plus button, there is a blue brush button. You can open the Style Changer panel by clicking on it, use it to change colors and fonts of your theme. See three view icons on the top bar: using them you can toggle between viewports to make sure your site looks ok on all devices. Click on the hamburger icon to open the main menu. You can manage your sites and pages there. Also there you can find the Extensions and Themes list.
To edit your block properties, click on it to find the blue gear icon. If you want to save your block to use it later, click on the save button. Also, you can move your block upper or lower.