However, the browser can know about the environment in which the images are rendered, which includes the size of the viewport and the resolution of the screen. One of the major problems with images in web development is that browsers know nothing about the images and are clueless about what sized images are rendering in relation to a viewport of different screens until the CSS and Javascripts are loaded. The Breakpoint module is in Drupal 9 core and has some preconfigured height and width of different viewports available with the built-in themes, you can add your own breakpoints in your custom themes’ breakpoints yml file as well.ĭrupal 9's Responsive image module uses a picture tag to render a flawless responsive image based on the breakpoint of the original image. The Picture module that was previously in Drupal 7 is now the new Responsive Images module in Drupal 9. ![]() Of course, you cannot possibly have all of them covered but you should specify some rough and reasonable sizes that could cover most devices. And that’s exactly what Drupal 9 helps you do with the help of the Breakpoints module and the Responsive images module.īut first, what are breakpoints? To be able to provide the most optimal image size for a device, you need to define different screen sizes in CSS, called breakpoints. When you’re confused, leave it to the browser. Read more about how responsive images work in Drupal 9 and learn to implement it using a simple step-by-step process. Ever since, the debate on responsive images has evolved into finding the best solution to render perfect, responsive images without any hassle.ĭrupal 9 does a fabulous job of offering out-of-the-box solutions for responsive images (since Drupal 8). According to him, you can save over 75% of the weight of those images if you serve the right-sized images on a smaller screen. ![]() ![]() In early 2010, Jason Grigsby pointed out that simply setting a percentage width on images was not enough, and that you needed to resize these images for a better user experience ( src).
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