Utilizing CSS for a responsive background image

While constructing a website, I encountered an issue where the client is using a mobile device and I want to prevent them from loading a particular background image. For larger screens, my plan is to incorporate approximately 5 images with different resolutions based on the device width. However, I have been unable to find a way to implement this in CSS.

Currently, I am utilizing a regular high-resolution image, but this is not ideal as it loads on mobile devices and may not be optimized for various desktop sizes.

max-width: 2560px;
background-image: url("../img/test_image_2.jpg");
background-repeat: no-repeat;
background-attachment: fixed;
htmlcss

Answer №1

As described on MDN, the <picture> tag provides a solution for responsive images.

<picture>
   <source media="(max-width: 799px)" srcset="elva-480w-close-portrait.jpg"/>
   <source media="(min-width: 800px)" srcset="elva-800w.jpg"/>
   <img src="elva-800w.jpg" alt="Chris standing up holding his daughter Elva"/>
</picture>

Another approach is to utilize media queries in your CSS stylesheet:

.element_class{background-image: url('elva-800w.jpg');}

@media only screen and (max-width: 799px) {
    .element_class {
        background-image: url('elva-480w-close-portrait.jpg');
    }
}
@media only screen and (min-width: 800px) {
    .element_class {
        background-image: url('elva-800w.jpg');
    }
}

Answer №2

To create a responsive design and improve loading times, you can selectively load different background images using CSS with the help of media queries. By using this method, browsers will only load the background image that is relevant to the device's screen size. Here is an example of how you can implement this technique:

background-image: url("../high_resolution.jpg");

@media (max-width: 600px) {
  /* This rule will replace the previous `background-image` 
   * property for devices or windows smaller than 600px
   */
  background-image: url("../low_resolution.jpg");
}

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