background-size: cover will resize the image so that it is always completely filling its container while cropping as little as possible.īackground | CSS Responsiveness by TheOdinProject ( CodePen. For example, background-position: center will make sure the image is always centered in its container, even if the container is too small to fit the whole image. You’ll see some examples and specifics in the reading assignment later, but you can get quite a lot of control over the display and placement of background images by working with these properties. What if you don’t want your image to simply shrink (in both height and width)? background-size and object-fit are two properties that can provide a little more flexibility (pun intended) with how aspect ratios are handled.īackground-position and background-size are properties that work on elements with a background image, and do not work on normal img tags. background-size, background-position and object-fit If an image is given a flexible width, and the height is set to auto, then it should retain its aspect ratio correctly. The solution to this issue is incredibly easy, and we’ve already mentioned it in an earlier lesson: simply don’t define both a width and a height. If you shrink the width of an image on smaller screens and do not manipulate the height, the image will appear distorted! The most basic problem you are going to face when working with responsive images is the aspect ratio or the relationship between width and height. You’ll learn how to serve up different images based on screen size.You’ll learn how to make your images behave properly when resizing them with CSS.This lesson presents a few issues that arise when working with responsive images and the options you have when dealing with them. Let’s change each of the columns to be one fraction unit wide.Images require special care on responsive websites. The fraction unit is written like fr, and it allows you to split the container into as many fractions as you want. Basic responsiveness with the fraction unitĬSS Grid brings with it a whole new value called a fraction unit. Let’s start by making the columns responsive. If this code confuses you, I’d recommend you to read my Learn CSS Grid in 5 minutes article, where I explain the basics of the layout module. Note: the example also has a little bit of basic styling, which I won’t go into here, as it’s got nothing to do with CSS Grid. Grid-template-columns: 100px 100px 100px Then we’ll add the images at the end of the article. If you want to learn to build responsive websites on a professional level, you can consider checking out Scrimba's responsive web design bootcamp, as it takes students from beginner to advanced through 15 hours of interactive tutorials.įor this article, we’ll continue on with the grid we used in my first CSS Grid article. col-sm-4, col-md-8) or create media queries for every single screen size. This means we don’t have to clutter up the HTML with ugly class names (i.e. In this article, I’ll teach you how to use CSS Grid to create a super cool image grid which varies the number of columns with the width of the screen.Īnd the most beautiful part: the responsiveness will be added with a single line of CSS.
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