First things first, gather all the images you want to show in the slider. Make sure they're optimized for the web so your page doesn't take forever to load.

Open up WeWeb and either start a new project or open an existing one. Head over to the page where you want to add your image slider.

In the WeWeb editor, drag a 'Container' widget from the left sidebar into your workspace. This container will be the home for all your slider components.

Inside the container, drag and drop 'Image' widgets for each image you want in the slider. Make sure they're all inside that main container.

1. Add 'Button' widgets to act as your navigational arrows for moving between images.
2. Place one button to the left of the container and the other to the right.

1. Set CSS rules to hide all images except the first one initially.
2. Use CSS classes and IDs to control visibility and the appearance of images and buttons.

.slider-container img:not(:first-child) {
  display: none;
}

1. Add a 'Custom Code' widget to your page.
2. Insert JavaScript code to handle the image transitions.

document.addEventListener('DOMContentLoaded', (event) => {
  const images = document.querySelectorAll('.slider-container img');
  let currentIndex = 0;

  document.querySelector('.next-button').addEventListener('click', () => {
    images[currentIndex].style.display = 'none';
    currentIndex = (currentIndex + 1) % images.length;
    images[currentIndex].style.display = 'block';
  });

  document.querySelector('.prev-button').addEventListener('click', () => {
    images[currentIndex].style.display = 'none';
    currentIndex = (currentIndex - 1 + images.length) % images.length;
    images[currentIndex].style.display = 'block';
  });
});

Use CSS to style the image slider container, images, and navigation buttons for a polished look.

.slider-container {
  position: relative;
  width: 100%;
  max-width: 600px;
  margin: auto;
  overflow: hidden;
}

.slider-container img {
  width: 100%;
  display: none;
}

.slider-container img:first-child {
  display: block;
}

.prev-button, .next-button {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background-color: rgba(0,0,0,0.5);
  color: white;
  border: none;
  padding: 10px;
  cursor: pointer;
}

.prev-button {
  left: 10px;
}

.next-button {
  right: 10px;
}

Preview your WeWeb project and test the slider functionality. Make sure clicking the navigation buttons successfully transitions between images.

Once you're happy with how everything looks and works, publish your WeWeb project to make it live.