Smashing Magazine

MAY 23, 2022

Lesser-Known And Underused CSS Features In 2022. Lesser-Known And Underused CSS Features In 2022. Some answers from the community surprised me, as they’ve included some very useful and often-requested CSS features which were made available in the past year or two. Adrian Bece. 2022-05-23T09:30:00+00:00. So, let’s get started!

Media 140

Media Tuning Design Website 140

CSS Wizardry

SEPTEMBER 28, 2023

The median image-weight per page landed at 881KB in 2022 , which is more than HTML, CSS, JS, and fonts combined! It’s CSS pixels all the way down. In order for an image to be counted as an LCP candidate, it needs to contain at least 0.05 At the time of writing, 99.9% of pages on the web include at least one image.

Games 275

Games Ecommerce Cache Systems 275

Smashing Magazine

AUGUST 15, 2023

The image in this hero component is loaded by CSS via the background-image property. Download and parse the CSS. Reconcile the CSS ruleset with the DOM. This allows the browser’s preload scanner to detect and download the image early in the process — something it cannot parse from a CSS file. Download the image.

Media 73

Media Metrics Mobile Best Practices 73

CSS - Tricks

SEPTEMBER 14, 2020

Una Kravets and Vladimir Levin: […] you can use another CSS property called content-visibility to apply the needed containment automatically. The post content-visibility: the new CSS property that boosts your rendering performance appeared first on CSS-Tricks. You can support CSS-Tricks by being an MVP Supporter.

Performance 145

Performance Development 145

CSS Wizardry

NOVEMBER 9, 2018

Despite having been called CSS Wizardry for over a decade now, there hasn’t been a great deal of CSS-related content on this site for a while. Let me address that by combining my two favourite topics: CSS and performance. Employ Critical CSS. What’s the Big Problem? Split Your Media Types.

Network 278

Network Performance Media Cache 278

Smashing Magazine

JANUARY 10, 2022

A Deep CSS Dive Into Radial And Conic Gradients. A Deep CSS Dive Into Radial And Conic Gradients. CSS gradients are a useful CSS feature that can be used to create interesting UI effects or even help us in drawing something without the need to create HTML elements for it. On design systems, CSS/JS and UX.

Design 138

Design Systems 138

Smashing Magazine

JULY 27, 2021

is opinionated about how to organize JavaScript code, but it doesn’t have built-in opinions about how to organize CSS. and exercise best CSS practices. experience, although it would be good to have a basic understanding of React and to be open to learning some new CSS techniques. Writing “Old-Fashioned” CSS.

Website 142

Website Design Best Practices Code 142

Dynatrace

OCTOBER 2, 2019

The contains visible text option mimics the Find (Ctrl+F/Cmd+F) functionality of a web browser. Contains visible text is the new default option for content validation. The old default option contains text was renamed to contains text on DOM or any resource. How the new validation approach differs . What’s next.

Monitoring 133

Monitoring Storage Code Performance 133

Dynatrace

AUGUST 20, 2019

The contains text content validation option now mimics the Find (Ctrl+F/Cmd+F) functionality of a web browser. This change only affects the contains text validation option (see below). The behavior of the contains element and contains text in element validation options has not changed. Why this change was made.

Monitoring 148

Monitoring Storage Code Performance 148

Smashing Magazine

JULY 29, 2021

There Is No Such Thing As A CSS Absolute Unit. There Is No Such Thing As A CSS Absolute Unit. When we start learning CSS, we find that CSS units of measurement are categorized as relative or absolute. Now, let’s explore why CSS absolute units aren’t so absolute. CSS Pixels. device) pixels and the CSS (i.e.

Operating System 145

Operating System Mobile Testing Systems 145

CSS Wizardry

AUGUST 13, 2019

It turns out that Cloud.typography is redirecting the request to a client-owned CSS file hosted on fonts.[client].com An outgoing request from a whitelisted domain returns a 302 , forwarding the request to a self-hosted CSS file that is optimised specifcally for your browser, OS, and UA (Google Fonts do something similar).

Latency 203

Latency Cache Strategy Media 203

Speed Curve

MARCH 7, 2022

It’s possible for your pages to contain zero blocking resources and still have less-than-optimal performance because of how your JavaScript is rendered. CSS – Like JavaScript, CSS doesn’t have to be bulky to cause problems. And, similar to JavaScript, more CSS files equals more potential trouble.

Mobile 145

Mobile Benchmarking Google Metrics 145

CSS - Tricks

DECEMBER 14, 2020

The data comes from making queries to the HTTP Archive and is broken down into various sections, such as Performance, Security, and the languages themselves, including how folks wrote HTML or CSS. Mobile pages do use slightly less CSS code across all percentiles, but only by 4 to 7 KB. Direct Link to Article — Permalink.

Latency 98

Latency Mobile Website Speed 98

Smashing Magazine

AUGUST 18, 2021

Since the code contains JavaScript modules, you can only run the example from an HTTP server and not from the local file system. On design systems, CSS/JS and UX. The component defines a template containing the HTML code needed to display the Gantt chart. For the complete CSS specifications, please refer to the sample files.

Code 139

Code Servers Development Availability 139

Smashing Magazine

MARCH 9, 2020

However, adding width and height attributes to your <img> markup have become useful again after some recent changes in the CSS world, and the quick adoption of these changes by the most popular web browsers. The CSS contain property gives you a way to explain your layout to the browser, so performance optimizations can be made.

Website 125

Website Code Mobile Network 125

Jos

APRIL 6, 2018

Code Splitting and CSS-in-JS : How CSS-in-JS extends code-splitting and lazy-loading to CSS, SVGs and other resources. Most times you would include all the scripts and CSS needed to render all sections as soon as the user visits the page. The JS code will be executed and the CSS applied to elements that aren’t visible.

Code 147

Code Performance Media Google 147

CSS Wizardry

MARCH 3, 2019

While private isn’t a security feature in and of itself, it is intended to prevent public caches (such as a CDN) storing a response that contains information unique to one user. What if the file contains sensitive information? Perhaps it’s an HTML page that contains your bank details? Cache-Control: max-age=60. style.ae3f66.css

Cache 264

Cache Latency Strategy Servers 264

Smashing Magazine

SEPTEMBER 15, 2021

Per the W3C spec , “a pseudo-element represents an element not directly present in the document tree” They have been around since version 1 of the CSS specification, when ::first-letter and ::first-line were introduced. Quick Tip Pseudo-elements used one colon in versions 1 and 2 of the CSS spec, but have used two colons from version 3.

Internet 135

Internet Internet Google Design 135

CSS Wizardry

JULY 21, 2018

The other day, Brad dropped me a message asking me about the topic of getting to know a brand new (specifically CSS) codebase. Chrome’s Coverage tool is a great way to see at a very high-level glance what CSS is being used by the current page. This should give you a list of all the stylesheets changed in the last year.

Programming 142

Programming C++ Database Code 142

CSS - Tricks

JULY 27, 2021

I got together with Tim Kadlec from over at WebPageTest the other day to use do a bit of performance testing on CSS-Tricks. I also learned from time that it’s ideal if the First Contentful Paint (FCP) contains the LCP. I was linking out to a third-party CSS file, which then redirects to my own CSS files that contain custom fonts.

Cache 97

Cache Google Innovation Testing 97

Official Blog - World Web Technology

MARCH 13, 2024

For example, if your website contains two columns, they will appear on a single screen on a laptop. The use of CSS media queries, along with a mix of flexible layouts and grids, enables this process. CSS, or Cascading Style Sheets, is a language that controls the visual appearance of web pages.

Ecommerce 52

Ecommerce Website Design Mobile 52

Jos

APRIL 5, 2018

Code Splitting and CSS-in-JS : How CSS-in-JS extends code-splitting and lazy-loading to CSS, SVGs and other resources. The example page we are going to use contains several sections or blocks: a header (these days, a large hero image taking the whole above-the-fold area). container = div ; &#125; &#125; >. &#123;

Code 130

Code Performance Google Media 130

Dynatrace

NOVEMBER 16, 2020

We designed our masking mechanism to ensure that CSS rules for masking are evaluated in the client browser—in this way, no sensitive or confidential information ever leaves the client browser. However, sometimes it can be cumbersome to define the proper CSS rules for masking.

Ecommerce 185

Ecommerce Monitoring Website Tuning 185

CSS Wizardry

JUNE 11, 2018

The waterfall below shows the browser waiting for CSSOM completion before it dispatches any requests for any images—you can clearly see that the CSS needs to finish before any images start. This seems like a bad idea—no s will begin downloading until Firefox has downloaded, parsed, and applied the CSS. Firefox gets weirder still!

Strategy 241

Strategy Development 241

Smashing Magazine

NOVEMBER 17, 2021

A Guide To Modern CSS Colors. A Guide To Modern CSS Colors. There are many different ways to define colors in CSS. CSS named colors are one of the simplest ways to color an element: my-element { background-color: red; }. We have an rgb() function in CSS for this. On design systems, CSS/JS and UX.

Energy 144

Energy Design Website Hardware 144

Smashing Magazine

JANUARY 21, 2021

After the latest redesign in late 2017, it was Ilya Pukhalski on the JavaScript side of things (part-time), Michael Riethmueller on the CSS side of things (a few hours a week), and yours truly, playing mind games with critical CSS and trying to juggle a few too many things. This is where we started. We had to fix that.

Performance 145

Performance Cache Mobile Network 145

Jos

APRIL 5, 2018

Code Splitting y CSS-in-JS : cómo CSS-in-JS nos permite extender el code-splitting y lazy-loading a CSS, SVGs y otros recursos. Seguramente sueles incluir todos los scripts y CSS necesarios para renderizar todas las secciones cuando el usuario carga la página. container = div ; &#125; &#125; >. &#123;

Code 130

Code Google Media Performance 130

Smashing Magazine

NOVEMBER 29, 2021

3D CSS Flippy Snaps With React And GreenSock. 3D CSS Flippy Snaps With React And GreenSock. Anyway, a few days later, I sat down at the keyboard, and a couple of hours later I had this: 3D CSS Flippy Snaps ? Each cell is going to consist of an element that contains the front and back for a flippable card. <div

Games 107

Games Website Performance Design 107

CSS - Tricks

SEPTEMBER 8, 2021

To my amazement, just having a separate container without even adding the [CSS] contain property fixed the performance. The trick is to avoid forced recalculations of style: […] The tooltip container is not visible in the page, so modifying it doesn’t invalidate the complete page render tree.

Performance 57

Performance 57

Smashing Magazine

AUGUST 9, 2019

Handling Unused CSS In SASS To Improve Performance. Handling Unused CSS In SASS To Improve Performance. In modern front-end development, developers should aim to write CSS which is scalable and maintainable. So CSS class names such as: blog-right-column.latest_topics_list.job-vacancy-ad. of the CSS is unused.

Performance 94

Performance C++ Media Website 94

Smashing Magazine

APRIL 29, 2021

Use CSS aspect-ratio or aspect ratio boxes to reserve space otherwise. For low impact to First Input Delay : Avoid images causing network contention with other critical resources like CSS and JS. Device Pixel Ratio (DPR) represents how a CSS pixel is translated to physical pixels on a hardware screen. Large preview ).

Media 145

Media Network Metrics Mobile 145

Smashing Magazine

APRIL 13, 2020

Typography controls in CSS have helped us be more creative with type too. Whereas HTML’s pre element respects pre-formatted text and presents it exactly as written in a document, the CSS white-space property enables similar results without sacrificing semantics. Right: Intricate header design developed using CSS Grid and Flexbox.

Design 116

Design Media C++ Technology 116

KeyCDN

JANUARY 14, 2021

CSS Preprocessors - If you use CSS preprocessors and prefer one or another in particular, typically Sass vs Less , make sure that the framework that you use supports it. Using traditional HTML, CSS, and JS, developers can create components just like other popular frameworks, like React.

Google 135

Google Mobile Open Source Website 135

Smashing Magazine

NOVEMBER 17, 2022

percent of pages contain at least one <img> tag, and 99.9 According to the analysis carried out in the performance section of Web Almanac , the img tag represents 42% of the LCP elements of websites, while 71-79% of the pages have an image as an LCP element, because they can also be applied as background using CSS.

Media 105

Media Cache Website Mobile 105

Smashing Magazine

JUNE 2, 2021

On design systems, CSS/JS and smart interface design patterns. Many of them are covered in CSS-Tricks’ helpful overview , and Smashing Magazine offers a great PDF checklist. Let’s talk about resources, and not just CSS or JavaScript (which we will cover later). And we purged CSS directives that are no longer necessary.

Performance 115

Performance Cache Website Mobile 115

Speed Curve

JULY 3, 2023

Video – For the first time in the many years that I've been covering the topic of page growth, I'm going to focus on the volume of video that pages contain. It’s possible for your pages to contain zero blocking resources and still have less-than-optimal performance because of how your JavaScript is rendered.

Mobile 52

Mobile Google Metrics Retail 52

Smashing Magazine

JUNE 13, 2019

Complex sets of build tools and processors had even supplanted the simple pleasure of writing HTML and CSS. As an enthusiastic user of HTML and CSS, I’ll also explain how to implement new ideas using the latest technologies; CSS Grid, Flexbox, and Shapes. The reasons why I’d enjoyed working on the web no longer seemed relevant.

Design 104

Design Media Energy Innovation 104