Mar 25, 2025
Aris S. & Ariffud M.
8min Read
Mar 25, 2025
Aris S. & Ariffud M.
8min Read
As an AI-powered web app development tool, Hostinger Horizons uses natural language processing (NLP) to interpret your prompts and generate the desired results. You can ask it to design your web app to match specific brand aesthetics, user experience (UX) guidelines, and functionality requirements.
While Hostinger Horizons simplifies the process, you still need to make informed design choices. Ignoring key visual and usability principles can result in an app that looks beautiful but lacks functionality, which may lead to poor user engagement and high bounce rates.
That’s why this guide covers proven web app design tips for Hostinger Horizons, along with prompt examples that follow key design principles. By the end, you’ll be able to create a web app that’s visually appealing, user-friendly, and fully functional.
In this section, you’ll learn essential best practices for designing web apps and how to apply them when writing prompts for Hostinger Horizons.
If you’re unsure how to describe your web app’s design or functionality, you can reference well-known web apps as examples. For instance, you might specify:
I want swipe-based navigation like Tinder.
The app should use flashcards similar to Duolingo for learning exercises.
By doing so, Hostinger Horizons can better understand your intent and generate an app that matches with your vision.
However, while it’s okay to draw inspiration from existing web apps, avoid directly copying their designs or functionality to prevent copyright and legal issues. Instead of replicating another app, describe the features you like and ask Hostinger Horizons to create a unique layout and look.
For example, instead of saying:
Make a to-do list web app exactly like Todoist.
Try:
Create a modern to-do list app inspired by Todoist but with an original design. Use a clean, minimalist interface with color-coded tasks. Users should be able to set reminders and drag-and-drop tasks between categories.
You can also upload reference screenshots of layouts, buttons, or color schemes you like. This helps Hostinger Horizons generate an app that reflects the aesthetic and functionality you have in mind while keeping the design original. Here’s how:
Design a web app with a layout similar to the attached screenshot. Keep the color scheme modern and minimal, with intuitive navigation and interactive elements.


Fonts play a crucial role for ensuring readability, good user experience and a professional tone. Using the right fonts makes your web app feel modern and user-friendly, while the wrong one can make it difficult to read and visually unappealing.
When choosing fonts for your web app, consider:
Some popular and highly readable fonts for web apps include:
If you need help to specify fonts in Hostinger Horizons, try a prompt like:
Use a modern, sans-serif font like Roboto for a clean, readable look.

To ensure good readability, follow these font size guidelines:
You can refine your font choices using these prompt examples:
Apply Open Sans for body text and Lato for headings. Maintain a 16px body text size and 24px for headings.
Set button text to 18px bold for visibility, with a high-contrast color.
We also suggest you keep these additional tips in mind:
Learn more about web accessibility principles and how to make your web app accessible in our comprehensive guide.
A button guides user interaction within a web app. That’s why you must design buttons that ensure users can navigate, take action, and complete tasks with ease. There are two main types of buttons: primary and secondary.
A primary button is the main action button, and it should stand out to drive key actions, such as submitting a form or completing a purchase. A secondary button provides alternative options, like canceling an action or navigating to a different section, without drawing too much attention.
To specify button styles in Hostinger Horizons, write clear prompts like:
Design primary buttons with a bold color (#007BFF) and rounded corners (8px) for a modern look.
Set secondary buttons to a neutral gray (#CCCCCC) with a subtle border.

Besides making primary buttons stand out while keeping secondary buttons less prominent, follow these best practices for button design:
Here are additional prompt examples that apply these button design tips:
Use rounded buttons with an 8px border radius for a modern look.
Make sure all primary buttons have a hover effect with a slightly darker shade.
White space (also known as negative space) is the empty area between elements in a web app. While it may seem like a waste of space, it’s actually crucial in improving readability, preventing visual clutter, and guiding user focus.
Without enough white space, a web app can feel overcrowded, difficult to navigate, and visually overwhelming.
In Hostinger Horizons, you can use these prompt examples to adjust spacing:
Ensure at least 20px of padding between sections and 10px margin around elements for a clean layout.
Apply 40px spacing between sections to create a structured, readable interface.

When defining spacing for your web app, follow these guidelines:
A proper web application design has a sense of depth that separates the background from the foreground, which you can achieve through different methods. For example, you can use different colors or patterns.
This is one of web design best practices that help users easily distinguish important elements and information in your application.
The most basic way to create this visual hierarchy is by using a background that doesn’t overpower more important elements, like text or buttons. Here are the best practices for a good background design:
Here’s a prompt example for creating a background design with a clear visual hierarchy:
Adjust the overall design of my web application. Use the off-white color (#E3E2DF) as the background. For the foreground objects, like text and buttons, use accent colors of either black (#000000) or raspberry red (#9A1750). Also, give the option to switch the color between the night and day modes.

Intuitive navigation elements are key to a user-friendly web application. They help users locate a specific page, find information, and use your app more easily.
Optimal usability entails a higher retention rate. If users can navigate and utilize your application efficiently, they are more likely to keep using your product.
Here are tips for creating intuitive web navigation for optimal user experience:
Here’s a prompt example for creating a top navigation bar with optimal design and accessibility:
Create a sticky navigation bar at the top of the landing page. Here’s the specification: - Make its background transparent, but add a line underneath the bar to distinguish it from the main page. - Each menu in this navigation bar has nested submenus, which expand when the cursor hovers over them. - Implement ARIA roles for this top bar and its menus so users can identify them using a screen reader and interact with them using key presses.

In addition to enhancing your web application’s visual appearance, images and icons help improve usability.
For example, icons make menus and navigation buttons more easily recognizable. You can also use them instead of text to reduce clutter and distractions.
Meanwhile, images act as visual aids to better illustrate information. For example, if you are creating a fitness web application, pictures of workout moves will help users follow the instructions.
Here are the best practices for optimizing images and icons on your web application:
Hostinger Horizons lets you upload an image as a prompt. In addition to enabling you to upload custom visuals, this feature lets you use an image to mark which part of your application needs adjustments.
Here’s an example prompt for optimizing images in your web application. In this case, we use an image to tell Hostinger Horizons which visual to adjust:
I want to adjust an image in my web application. In the screenshot I attached, the image I want to adjust is inside the red square. Here’s what I want you to do: - Make the image the same aspect ratio as other images. - Implement lazy loading for the image so it will load only when visible on the viewport.

AI web app development platforms like Hostinger Horizons help streamline your web app creation process. While using such tools requires little to no technical expertise, you still need to consider the design.
This aspect is important because users are more likely to stick with a well-designed application. After all, it is easier to use and navigate.
When creating a web app, consider these design tips, from choosing the correct fonts to strategically placing images. If unsure, you can ask AI to use other applications as references and give them its own twist.
When creating an application using Hostinger Horizons, try the design prompts we have discussed in this article to elevate your application’s visual appearance.
To design a web app using AI, start with planning the layout. Next, ask the AI to build the main prototype of the user interface. Once built, refine the smaller visual details gradually, starting from the color and moving to to button placements. Remember to focus on iterating one element at a time until you get the desired result.
They are very similar. After all, AI-generated web design is the fruit of human thinking, with the AI handling the coding part. However, AI may not be able to produce the exact design the user envisioned, making it not suitable for complex and intricate projects that require code-level modification.
Yes. Hostinger Horizons automatically creates a web app with a responsive design. You can check how your project looks on desktop and mobile viewports by toggling the option in the preview pane.
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