Like, seriously, not using px or other units at all. We use optional third-party analytics cookies to understand how you use GitHub.com so we can build better products. Here’s a neat CSS trick I learned recently: Using percentage padding, we can give any element a responsive aspect ratio in just a few lines of styling.This allows you to create nxn square grid layouts, responsive embeds that scale with the device resolution (e.g., for YouTube videos), and much more.. I agree with @Ana — a viewport unit/SASS (or LESS)/CSS calc() combination is what I like to do here because it leaves out the JS factor (JS, though, would have to be used when supporting browsers without . Responsive HTML Containers That Scale Proportionally by Bill Kalpakoglou posted on January 9, 2017 A problem that surfaces every now and again in CSS is the inability to make containers scale responsively while maintaining proportional height to width ratio. You would just want to limit the maximum height/width proportionately. For an example of using SVG to do this exact thing with minimal CSS and no Javascript computations see: http://svgdesign.guru. All Values of The CSS object-fit Property. Roven Loo 7,834 Points Roven Loo . If necessary, the object will be stretched or squished to fit These styles override the defined height attribute in HTML and allow the image to change its height proportionally to its width. Let’s say this is the kind of thing we’re after: CSS alone can’t really do this. Also, you may be able to size everything with vw/vh units maybe, but that sounds like a pain in the butt and a whole lot of magic numbers. The size of one em is then defined in the parent element as font-size, and the height of the parent is defined to match. Works great if you want to scale font size to parent div (something that’s not possible with css alone). The syntax for the scale() method is as follows: transform: scale(x, y); The scale function will proportionally scale the width (x) and height (y) of an image based on the values you specify. Different sized screens, yadda yadda yadda. CSS alone can’t really do this. I’ve worked with REMux (https://css-tricks.com/remux-an-experimental-approach-to-responsive-web-design/). Yes SVG can do this way better, but until the substandard WebKit rendering engine is upgraded to handle UHD capabilities, and supports SVG, Apple and Android tablets, which are cheap consumer grade OS systems, can not be used. Meaning the height will be completely independent of the width. Put it on the top or the bottom of an element and it will proportionally affect the height of the child. If the background-size property is set to "contain", the background image will scale, and try to fit the content area. But, like what you mansion here it may required because if you want text to continue to be readable within certain screen width. What we don’t get (easily, anyway) is a way to scale whole element (and it’s children) proportionally—retaining its exact layout as it changes size. The reason I’m all into this idea is because I noticed that embeddeddable slide decks from Slides.com work like this. The height will be a percentage relative to its parent height. Can I scale a div's height proportionally to its width using CSS , You can do it with the help of padding on a parent item, because relative padding (even height-wise) is based on the width of the parent The aspect ratio of an element describes the proportional relationship between its width and its height. Doing this, you can manually adapt your layout in size, visibility, and position. Browser support. If … I have some things to say. Here are some examples of common aspect ratios, rendered using plain old HTML and CSS: ), It’s possible to do it in pure CSS using pseudo-elements and inlined SVG, but it’s kind of a mess. Learn more, We use analytics cookies to understand how you use our websites so we can make them better, e.g. What is aspect ratio? The scale() method allows you to increase or decrease the size of an element. I'm doing the JavaScript way, but just trying to see if this is possible with CSS. Additionally, you can also apply the max-height property if you've a fixed height div element, so that the image doesn't overflow from the div's boundary horizontally or vertically. pic.twitter.com/1CybHUBdoS. Resize image proportionally with CSS? I could use this to proportionally resize the guts, but only as much as needed to fit. And it does the job. The max-width property in CSS is used to create resize image property. Simple stuff! If nothing happens, download the GitHub extension for Visual Studio and try again. Add CSS¶ Set the height and width of the
. Will post a pen soon. 0 votes . To make it round, we use an old css trick: If you pick a square and give it a 50% border radius, it becomes a circle. fill - This is default. IE7 resizes an image proportionally regardless whether or not there are any defined dimension attributes in HTML, even without using height: auto; in the styles. Resize image proportionally with CSS. Let’s cover this in an article really soon. That’s not what we want. ( acts like a reverse