How to Create a Loading Spinner for a Web Site with CSS and JavaScript

📝 Description:
In this short tutorial, you'll learn how to build a simple yet elegant page loader (spinner) using plain JavaScript. The loader appears while the page is loading, then fades out smoothly and is removed from the DOM once everything is ready.

✨ What you'll learn:
1. How to detect when the page has fully loaded using window.onload
2. Adding and removing CSS classes for smooth transitions
3. Listening for transitionend events
4. Fallback logic using setTimeout to ensure removal

This type of loader enhances UX by giving users visual feedback while your site is loading.

🔖 Hashtags:
#javascript #pageloader #spinner #webdesign #frontend #webdevelopment #html #css #vanillajs #uxdesign #loadinganimation #programmingtutorial

🔗 Source code:
https://keepsnip.com/source/how-to-create-a-loading-spinner-for-a-web-site-with-css-and-javascript

🖼️ Image source:

Visit unsplash.com

img 1: https://images.unsplash.com/photo-1693574855928-68c1c8a6daee?w=500&auto=format&fit=crop&q=60&ixlib=rb-4.1.0&ixid=M3wxMjA3fDB8MHxwaG90by1yZWxhdGVkfDE5fHx8ZW58MHx8fHx8

img 2: https://images.unsplash.com/photo-1719507523391-bd10fbe12868?q=80&w=1470&auto=format&fit=crop&ixlib=rb-4.1.0&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D

img 3: https://images.unsplash.com/photo-1729710448593-7a361fe6323f?w=500&auto=format&fit=crop&q=60&ixlib=rb-4.1.0&ixid=M3wxMjA3fDB8MHxwaG90by1yZWxhdGVkfDE1fHx8ZW58MHx8fHx8