Two side-by-side images with a soft, blurred background created by stretching and blurring the original image using the CSS border-image property

Frameless Blurred Background Image Effect in CSS

This is a Frameless Blurred Background Image Effect. It uses an innovative CSS technique to generate a soft, atmospheric background for an image by duplicating, stretching, and blurring the image itself. The function is to create a polished, “pro” look for profile pictures or product thumbnails without requiring image editing software or complex JavaScript canvas manipulations.

Technologies:
HTML CSS
Difficulty:Intermediate
Browser Support (as of Mar 2026):
Chrome Chrome 15+ Edge Edge 12+ Firefox Firefox 15+ Safari Safari 6+
Features:
Border-image TrickCSS Custom PropertiesPure CSS
Code by: Temani Afif Temani Afif
License: MIT