CSS Animation Generator

CSS animation generator - create dynamic and smooth effects on the website

Animations on the website attract users' attention, improve the experience (UX) and give the website a modern character. Our advanced CSS animation generator allows you to design smooth motion, rotation, scaling and transition effects without having to write complex code by hand.

CSS animation basics: the @keyframes rule and the parent animation property

Creating an animation in CSS is based on two main elements: defining keyframes using the @keyframes rule and assigning this animation to a specific HTML element using the animation property. The @keyframes rule describes what an element should look like at specific moments during the animation (e.g. at the beginning at 0%, halfway through at 50% and at the end at 100%).

In turn, the animation property in the style sheet determines the parameters for playing this animation on a given element. Writing these rules by hand can be time-consuming and requires remembering many syntactical details. Our generator automates this process, creating both a complete @keyframes block and a ready-made CSS class with appropriately configured properties.

Key animation parameters: duration, timing-function, delay and iteration-count

To make the animation look natural, we must precisely configure its parameters. animation-duration specifies the duration of one animation cycle (in seconds or milliseconds). The animation-timing-function is also extremely important, as it determines the acceleration and deceleration of the animation (e.g. ease-in, ease-out, linear or non-standard cubic-bezier curves).

The animation start delay is defined by the animation-delay property, and the number of repetitions is animation-iteration-count (can be a number or infinite for infinitely looped animations). Our generator allows you to interactively adjust all these parameters using simple sliders and instantly preview the effect.

Applying transforms (transform: translate, scale, rotate) to smooth animations

The best visual effects and highest performance are achieved by animating geometric properties using transform. This allows you to move the element (translate), change its size (scale), rotate (rotate) and skew (skew) in two- and three-dimensional space.

Because the transformations are rendered by the graphics card (GPU) bypassing the Layout and Paint stages in the browser, these animations run extremely smoothly and do not cause page jamming (so-called jank). The CSS animation generator uses these best practices by default, offering ready-made effect templates based on transformations.

CSS animation optimization for performance and mobile devices

While CSS animations are much more efficient than those written in JavaScript, using them incorrectly can lead to excessive battery consumption and slow down mobile devices. You should avoid animating properties such as width, height, margin, top and left because they force the browser to recalculate the layout of the entire page.

Transform and opacity should always be preferred instead. Additionally, the will-change property can be helpful as it informs the browser about the planned animation of the element, allowing it to be optimized in advance. By using the code we generated, you can be sure that the animations will work smoothly on any mobile and stationary device.

Frequently asked questions