css3 set frame

CSS3 set frame animation: Make web pages more interesting!

In the Internet era, website design and interactive experience are becoming more and more important. In order to attract users' attention and enhance visual effects, animation has become an indispensable design element. Frame animation in CSS3 can help web designers easily create a variety of cool animation effects without additional plug-ins, making the website more attractive.

What is frame animation?

Frame animation refers to switching between multiple images (or text) to form an animated visual effect in a short time. Each image is called a frame, and the switching speed is the playback speed. In CSS3, keyframes are used to describe each frame, and animation effects are achieved by adjusting the values ​​of properties.

How to create CSS3 frame animation?

To create a frame animation, you first need to set a key frame, which is the start state and end state of the animation. For example, we can create a simple animation that slowly slides a piece of text from the left to the right.

<div class="animation">Hello World!</div>

.animation {
  position: relative;
  animation-name: slide;
  animation-duration: 3s;
}

@keyframes slide {
  from { left: -100px; }
  to { left: 100px; }
}

This animation will move the text "Hello World!" from the left to the right for 3 seconds. Among them, the .animation class sets position to relative, so that the animation moves relative to the parent element. animation-name specifies the name of the animation, and animation-duration specifies the duration, which is 3 seconds in this case. Next, set the animation's start state from and end state to in keyframes @keyframes. In this example, the text moves from the left (left: -100px) to the right (left: 100px).

Bring more variety to animation

In addition to from and to keyframes, we can also use percentages to set animation effects. This allows the animation to be more varied and detailed.

For example, we can create an enlargement animation to gradually enlarge the element from its original size:

<div class="animation-blue"></div>

.animation-blue {
  width: 100px;
  height: 100px;
  background-color: blue;
  animation-name: magnify;
  animation-duration: 3s;
  animation-fill-mode: forwards;
}

@keyframes magnify {
  0% { transform: scale(1); }
  50% { transform: scale(1.5); }
  100% { transform: scale(2); }
}

This animation will gradually enlarge the blue square from 100px to 200px. Among them, the .animation-blue class sets the background color to blue, and uses the animation-fill-mode attribute to maintain the end state after the animation is completed. In keyframes@keyframes, percentages are used to describe the change process of animation. Here, the text is enlarged from its original size (transform: scale(1)) to 150% (transform: scale(1.5)), and finally to 200% (transform : scale(2)).

Not only that, CSS3 frame animation also supports richer features such as transition and animation blending, which can achieve more complex dynamic effects.

Conclusion

CSS3 frame animation makes web design more lively and interesting, and also makes the website experience richer and more attractive. With the powerful functions of CSS3, we can easily create a variety of animations in different styles to give users a better visual experience.

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