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Simple Portfolio Website Design using HTML

How to Create Image Gallery using JavaScript?

Last Updated : 13 Aug, 2024

An Image Gallery is a collection of images displayed in a grid or slideshow format on a webpage. To create an Image Gallery using JavaScript, you can dynamically load images, create HTML elements, and use CSS for styling. JavaScript can add interactivity, like transitions and navigation controls.

Here is the Preview Image of the Project we are going to make:

Approach to Create Image Gallery

The Image Gallery will display all the image in small size and when you click on the particular image it will expand and you can see it in large size.
To create this we will first use the CSS grid property to make all the images in grid layout by creating a simple HTML structure.
After designing the basic HTML structure we will use CSS properties to make images responsive.
Now, we will use the CSS transform and cursor Zoom-in property, to view the image in full-size when you click on the particular image.

How to Create Image Gallery using JavaScript?

Step 1: HTML Structure

Begin by creating the basic HTML structure for your image gallery page. Use semantic HTML tags to organize your content effectively. Here’s a sample structure:

index.html

<!DOCTYPE html> <html lang="en">  <head>     <meta charset="UTF-8">     <meta name="viewport" content="width=device-width, initial-scale=1.0">     <link rel="stylesheet" href="style.css">     <title>Image Gallery</title> </head>  <body>     <!-- Heading Name -->     <div class="heading">         <h1>Image Gallery</h1>     </div>      <!-- Image Gallery section all images in one div -->     <div class="gallery">         <div class="gallery-item">             <img src= "https://media.geeksforgeeks.org/wp-content/uploads/20240311163321/Types-of-Wastes-(Banner).webp"                 onclick="openModal( 'https://media.geeksforgeeks.org/wp-content/uploads/20240311163321/Types-of-Wastes-(Banner).webp')"                 alt="Image 1">         </div>         <div class="gallery-item">             <img src= "https://media.geeksforgeeks.org/wp-content/uploads/20240311125007/Invertebrates-(Banner).webp"                 onclick="openModal( 'https://media.geeksforgeeks.org/wp-content/uploads/20240311125007/Invertebrates-(Banner).webp')"                 alt="Image 2">         </div>         <div class="gallery-item">             <img src= "https://media.geeksforgeeks.org/wp-content/uploads/20240311120816/GBlog-banner.webp"                 onclick="openModal( 'https://media.geeksforgeeks.org/wp-content/uploads/20240311120816/GBlog-banner.webp')"                 alt="Image 3">         </div>         <div class="gallery-item">             <img src= "https://media.geeksforgeeks.org/wp-content/uploads/20240308123700/Layers-of-Atmosphere-Banner-02.webp"                 onclick="openModal( 'https://media.geeksforgeeks.org/wp-content/uploads/20240308123700/Layers-of-Atmosphere-Banner-02.webp')"                 alt="Image 4">         </div>         <div class="gallery-item">             <img src= "https://media.geeksforgeeks.org/wp-content/uploads/20240307180031/List-of-Rocket-Launching-Stations-in-India---banner.webp"                 onclick="openModal( 'https://media.geeksforgeeks.org/wp-content/uploads/20240307180031/List-of-Rocket-Launching-Stations-in-India---banner.webp')"                 alt="Image 5">         </div>         <div class="gallery-item">             <img src= "https://media.geeksforgeeks.org/wp-content/uploads/20240215134226/Russia-Banner-copy-2.webp"                 onclick="openModal( 'https://media.geeksforgeeks.org/wp-content/uploads/20240215134226/Russia-Banner-copy-2.webp')"                 alt="Image 6">         </div>         <div class="gallery-item">             <img src= "https://media.geeksforgeeks.org/wp-content/uploads/20240226155245/girl-dog-names-banner.webp"                 onclick="openModal( 'https://media.geeksforgeeks.org/wp-content/uploads/20240226155245/girl-dog-names-banner.webp')"                 alt="Image 7">         </div>         <div class="gallery-item">             <img src= "https://media.geeksforgeeks.org/wp-content/uploads/20240215151423/Types-of-Microscope-(Banner).png"                 onclick="openModal( 'https://media.geeksforgeeks.org/wp-content/uploads/20240215151423/Types-of-Microscope-(Banner).png')"                 alt="Image 8">         </div>     </div>      <!-- Modal for Image Display -->     <div id="myModal" class="modal">         <span class="close" onclick="closeModal()">&times;</span>         <img class="modal-content" id="modalImage">     </div>      <!-- JavaScript for Modal -->     <script>         function openModal(src) {             document.getElementById("modalImage").src = src;             document.getElementById("myModal").style.display = "block";         }          function closeModal() {             document.getElementById("myModal").style.display = "none";         }     </script> </body>  </html>

Step 2: CSS Styling

Use CSS to make your gallery visually appealing and responsive. Apply grid layouts, adjust image sizes, and ensure proper alignment. Additionally, consider importing fonts for a polished look.

style.css

 .gallery {      display: grid;      grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));      gap: 10px;      padding: 20px;  }   .gallery-item {      overflow: hidden;  }   .gallery-item img {      width: 100%;      height: auto;      display: block;  }   .modal {      display: none;      position: fixed;      z-index: 1;      padding-top: 100px;      left: 0;      top: 0;      width: 100%;      height: 100%;      overflow: auto;      background-color: rgba(0, 0, 0, 0.9);  }   .modal-content {      margin: auto;      display: block;      max-width: 90%;      max-height: 90%;  }   .close {      position: absolute;      top: 15px;      right: 35px;      color: #f1f1f1;      font-size: 40px;      font-weight: bold;      transition: 0.3s;  }   .close:hover,  .close:focus {      color: #bbb;      text-decoration: none;      cursor: pointer;  }

Step 3: JavaScript Functionality

Implement JavaScript to enhance user interaction. When users click on an image, expand it to full size. Here’s a simple example of how you can achieve this:

JavaScript

function openModal(imageSrc) {     let modal = document.getElementById("myModal");     let modalImg = document.getElementById("modalImage");     modal.style.display = "block";     modalImg.src = imageSrc; }  function closeModal() {     let modal = document.getElementById("myModal");     modal.style.display = "none"; }

Output:

Simple Portfolio Website Design using HTML

bhartik021

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