How can I create a CSS-only animated progress bar?
Antek N
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Creating a CSS-only animated progress bar allows you to add dynamic visual feedback to indicate the progress of a task or operation without relying on JavaScript or other scripting languages. Here's a step-by-step guide on how to create a CSS-only animated progress bar: 1. HTML Structure: Start by setting up the HTML structure for the progress bar. You'll need a container element and an inner element to represent the progress. Here's an example:

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  <div class="progress-bar">
     <div class="progress"></div>
   </div>
   

2. CSS Styling: Apply the necessary CSS styles to achieve the desired appearance of the progress bar. This includes defining the size, colors, and border styles. You can customize these styles to fit your design requirements. Here's an example:

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 .progress-bar {
     width: 100%;
     height: 20px;
     background-color: #f2f2f2;
     border-radius: 10px;
     overflow: hidden;
   }

   .progress {
     height: 100%;
     background-color: #4caf50;
     width: 0;
     transition: width 1s ease-in-out;
   }
   

In this example, the.progress-bar class sets the dimensions and background color of the progress bar. The.progress class represents the progress itself and starts with a width of 0. Thetransition property adds animation to smoothly update the width over time. 3. Animation: To animate the progress bar, you'll need to update the width of the.progress element. This can be done by adding a CSS class that modifies the width property. Here's an example:

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 .progress-bar.active .progress {
     width: 100%;
   }
   

In this example, the.active class is added to the.progress-bar container to trigger the animation. When the.active class is applied, the width of the.progress element is set to 100%, resulting in the progress bar appearing full. 4. JavaScript Interaction (Optional): If you want to control the progress dynamically using JavaScript, you can add event listeners or modify the DOM to toggle the.active class on the.progress-bar element. For example, you could use a button click event to start the animation:

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   const progressBar = document.querySelector('.progress-bar');
   const startButton = document.querySelector('#start-button');

   startButton.addEventListener('click', () => {
     progressBar.classList.add('active');
   });
   

In this example, clicking the button with the ID "start-button" adds the.active class to the.progress-bar element, initiating the animation. By following these steps, you can create a CSS-only animated progress bar. The progress bar will animate smoothly as the width of the progress element updates. You can customize the appearance, animation duration, and interaction based on your specific needs, giving users a visually engaging representation of progress.