For more details, I wrote a complete article about this updateīut why does wordpress create copies of images of different sizes? Responsive images: Different images depending on the size and type of screen Images in WordPress before version 4.4īasically, wordpress created these different image sizes so that you could simply choose whether you wanted to insert a larger or smaller image into your web pages. Since version 5.3 of WordPress it is no longer 5 images but 8 that are created each time you add an image to your media library. So it is quite possible that you have more than 5 images created each time (for example, for the theme I created for our novo-monde travel blog, I added an extra size so that each time I put an image in the library, it is actually 6 images that are created). Without going into details, you should also know that wordpress theme developers also have the ability to add different image sizes that may be necessary for a specific design. So you see that by default, wordpress already creates 5 images on your server each time you upload media to your library. Thumbnail : the default image has a maximum width of 150px and a maximum height of 150pxĪlso note that since wordpress 4.4, a 5th image size between large and medium is automatically created with a width of 768px (no max height).Medium : the default image has a maximum width of 300px or a maximum height of 300px.Large : the default image has a maximum width of 1024px or a maximum height of 1024px (this can be changed in the media settings). IMAGE RESPONSIVE RESIZE FULL SIZEFull size : the original dimensions of the image you uploaded.Besides, you may have noticed that when you insert a media in an article, you can choose by default between 4 image sizes: When you add an image to the Media Library, WordPress will automatically create multiple copies of that image with different dimensions. What happens when you upload an image in the WordPress admin But know that most of the things I will talk about below are valid for any website that displays different images depending on the size and type of screen (which is really important in 2019 □ ). In this article I will focus on the case of images in the WordPress CMS. But even if your images have been well compressed, this does not mean that the browser displays the right image according to the type and size of the screen (understand that it is possible that the browser loads an image of 1500X1000 and actually displays it in 900X600… this is not optimal because the loaded image is much heavier than it should be). In my last article I explained you how you could compress your images to reduce their weight while keeping a beautiful quality (you will also find a detailed comparison and test of the best WP image optimization plugin here). In this example, we have added an image within the responsive web page.With all the types and sizes of screens that now exist on our smartphones and computers, the topic of image optimization of a website has become quite complicated. Example : Adding image to a webpage using CSS The image can also automatically adjust itself according to the device width. We can add images anywhere we want within the responsive web pages. When you resize the browser, you will se the effect.Īs we can see in the output, the image is taking the whole available width this is because we have specified the value of the width property to 100%. These two properties make the image scaled up to be larger than its actual size. In this example, we have set the width of the image using CSS width property with a value of 100% and the height of the image using CSS height property with a value auto. Example : Creating Responsive image in CSS By applying these two properties to any image, the image will become responsive and automatically adjust itself according to the device's width. To create a responsive image, we have to set the width property to a percentage, and the height is set to be auto. The responsive images are those that adjust themselves automatically according to the device's screen size. The responsive images are also a part of the responsive web layout. So, it is very necessary to make a web page responsive to provide a better user interface and device compatibility. Today, most people access the internet on smaller devices (phones and tablets) rather than full-screen devices (laptops, desktops).
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