![]() ![]() It’s important to understand that the rendering pixel pipeline is a transformative series of operations - the result of the previous operation is carried into the next operation to create new data. The layers can be painted independently but overlapping elements require more careful work Compositing: When parts of the page are drawn into multiple layers, they need to be drawn to the screen in the correct order so that the page renders correctly.The drawing is typically done onto multiple surfaces, often called layers It involves drawing the visual part of the elements. Paint: Painting is the process of filling in pixels.For example, the width of the element typically affects its children’s widths all the way down the tree, a process that can be quite intensive The layout of one element can affect other elements. Layout: Once the browser has applied the style rules to an element, it can begin to calculate how much space it takes up and its position on the screen.Once rules are known, they are applied and the final styles for each element are calculated Style: This is the process of deciding which CSS rules apply to which elements.JavaScript: JavaScript can be used to do things that result in visual changes, such as adding DOM elements to the page. ![]() Google refers to this process as the rendering pixel pipeline. The part of the process that relates most to our discussion of rendering performance is what happens after the HTML file has been loaded in the browser. There are some technical background processes, but the main event is to download the resources that make up the webpage, such as the HTML file, font files, and CSS files. When you enter a URL in the address bar of a browser and fire off a request for a webpage, a series of events are kicked off. Rendering is the process of transforming the code of a webpage into pixels that a user can see in the web browser. But first, we’ll lay the groundwork with an exploration of the fundamentals of rendering. In this article, we will dive into the benefits and practical use cases of the content-visibility CSS property, as well as situations where it might not be the most suitable option. The content-visibility property is part of the CSS Containment Specification, whose objective is to improve performance. This can make the initial page load faster. It enables the browser to bypass layout and rendering work for elements not immediately needed by a user. Content-visibility is a CSS property that controls whether or not an element renders its contents. ![]()
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