Share Methods for layering animation onto your site — from old stand-bys to bleeding-edge techniques. Starting with the stand-bys. Responsive Design is now the norm.
The term itself sounds like something overly complicated, close to higher mathematics. Why Should I Care? The goal is to move this group of balls with animation. The easiest way to do this is to adjust the left and top properties. To fix this, we can use CSS transform using the translate function, instead of animating the top and left values.
Now the animation is nice and smooth. So why did this help? In the left and top example, we can see green bars at each animation step. This is an expensive repainting operation. The animation frame rate is less than 60fps, which we always aim at achieving to make the animation smooth.
Now look at the timeline in the case of CSS transforms: As you can see, there are no green bars during the animation.
When this feature is turned on, green boxes i. In the left and top example, the balls have a green box for the entire animation process, indicating the repaints. On the other hand, in the CSS transforms example, the paint rectangle writing animation css displayed only on the first and last animation frames.
So how exactly do transforms render the animation without repaints? The basic answer is that CSS transforms occur directly in the GPU memory that utilizes hardware acceleration, which avoids software rendering.
The Render Tree consists of render objects — the elements to be rendered on the page. Each render object is assigned to a graphic layer. Each layer is uploaded to GPU as a texture. The trick here is that the layer may be transformed in the GPU without repainting, like in the case of 3D graphics.
These transformations are made by the separate Compositor process. You can find more information about the composition in Chrome here. Each composite layer has an orange border.
Our balls with the CSS transformation have orange borders and are moved to separate composite layers: At this point, you might ask: When does a browser create a separate composite layer?
It does so in the following cases: The difference between the 3D and 2D transforms is that 3D transforms make the browser create a separate composite layer beforehand, while 2D transforms do it on the fly.
At the start of the animation, a new composite layer is created and the textures are loaded to the GPU, which initiates the repainting. Then the animation is performed by the Compositor in the GPU. When the animation is finished, the additional composite layer is removed, which results in another repainting operation.
Only the following properties are supported: This helps avoid the first repainting operation caused by the new layer creation.
This makes the browser create a separate layer and move the element to the GPU beforehand, thus triggering hardware acceleration.
This technique can also be useful when the repainting of one element is too expensive due to another element behind it.
The ball is animated with the left and top properties. Again, the ball movement is jerky. This happens because each repainting operation costs too much due to the blurred background. The result is not too bad and the animation works well. Because now the blurred paint-expensive background is moved to another composite layer, and the repainting of the ball at each animation step is cheap.
Use Hardware Acceleration with Caution Nothing comes for free. There are some issues related to hardware acceleration.I'm building a landing page for a client with their logo in the center and their catchphrase directly below - however they want the catch phrase to be animated so that it looks as though it is being handwritten.
About CSS Base. It's a common practice to apply CSS to a page that styles elements such that they are consistent across all browsers. We offer two of the most popular choices: ph-vs.com and a reset.
Or, choose Neither and nothing will be applied. CSS (Cascading Style Sheets) is a language for describing the rendering of HTML and XML documents on screen, on paper, in speech, etc.
It uses color related properties and respective values to color the text, backgrounds, borders, and other parts of elements in a document.
If you've ever coded an animation that's longer than 10 seconds with dozens or even hundreds of choreographed elements, you know how challenging it can be. CSS is a language that is used by nearly every developer at some point.
While it's a language that we sometimes take for granted, it is powerful and has many nuances that can help (or hurt) our designs. Here are thirty of the best CSS practices that will keep you writing solid CSS and avoiding some.
See the Pen Typewriter animation pure CSS by Thiago Teles Pereira (@thiagoteles) on CodePen. See the Pen JS Typewriter by Simon Shahriveri (@hi-im-si) on CodePen. See the Pen typewriter by gavra (@gavra) on CodePen.