How To Resize An Image Css

CSS Programming

Resizing images using CSS is a fundamental skill for web developers. It allows us to control the size of images on a webpage without altering the actual image file. Let’s dive into the details of how to resize an image using CSS.

Understanding the Basics

Before we jump into coding, it’s important to understand the basic properties that are used to resize an image in CSS. The width and height properties are commonly used to control the dimensions of an image. These properties can be specified in pixels, percentages, or other length units.

My Go-To Method

Whenever I need to resize an image, my go-to method is to create a CSS class specifically for that image. For example, if I have an image with the ID “myImage”, I’ll create a class like this:

.resized-image {
width: 300px;
height: auto;

By setting the width to a specific value and the height to auto, the image maintains its aspect ratio while being resized to the specified width.

Using Percentage for Responsiveness

If I want the image to be responsive and adapt to different screen sizes, I use percentages. For example:

.responsive-image {
width: 100%;
height: auto;

This ensures that the image will always fill the width of its container while maintaining its aspect ratio.

Applying the Class to the Image

Once the CSS class is created, I simply apply it to the image in the HTML code:

<img src="image.jpg" alt="My Image" class="resized-image" />


Resizing images with CSS provides a flexible way to control the visual aspect of a website. By using the width and height properties, along with CSS classes, we can easily adjust the size of images to suit our design needs. Remember to keep responsiveness in mind by using percentage-based resizing for a better user experience.