change image size in css

Just like everything else in web development, there are multiple ways to adjust the size of an image using CSS. This article will show you a simple way to accomplish it, providing you a deeper understanding and control over the use of images in your web pages.

Code snippet: Adjusting Image Size with CSS

In CSS, you can easily adjust the size of an image using the width and height properties. Here is a simple example:

img {
    width: 300px;
    height: 200px;
}

You simply target the image tag (or any specific image using its class or id) and set the width and height to your desired dimensions.

Code Explanation for Adjusting Image Size with CSS

In the code snippet above, the img is the selector which targets all the images in your HTML document while the width and height are properties declared inside the braces {}.

The width and height properties set the width and height of the image respectively. The property values (300px and 200px) are specific dimensions we want to apply to the image. Note that we are using px (which stands for pixels) as the measure, but other measures like % (percentage of the parent container), em (relative to the font-size of the element), or auto (browser will calculate and select an appropriate size) could be used.

This is a straightforward way to size your images, but it’s important to note that this might distort your images if the aspect ratio (the ratio of width to height) isn’t the same as the original image. To maintain the aspect ratio, you could just declare one property (either width or height) and leave the other to auto.

Here’s an example:

img {
    width: 300px;
    height: auto;
}

In this case, the browser would automatically set the height that maintains the image’s aspect ratio. This way, your images will look as they should without any distortion.

Remember, when you make changes to the CSS, be sure to reload your webpage to see the changes take effect. This is a simple and effective way to control your image sizes using CSS. Happy coding!