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Let’s talk about how to implement CSS3 background rotation

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2023-04-21 10:11:061105browse

CSS3, as an important front-end technology, plays an important role in page design and layout. Among them, the background rotation effect is a very cool effect that can bring richer visual effects to the website. This article will introduce the implementation method of CSS3 background rotation and how to apply it to web design.

The implementation method of CSS3 background rotation mainly relies on the transform attribute in CSS3. First, we need to set a background image for the element. Then, define the rotation angle through the rotate() attribute in the transform attribute, and you can also use the translateX() and translateY() attributes to adjust the position.

For example, the following code can achieve a simple background rotation effect:

.rotate-bg {
  width: 200px;
  height: 200px;
  background: url(bg.jpg) center center no-repeat;
  transform: rotate(45deg);
}

With the above code, you can implement an element with a width and height of 200px, and rotate its background image 45 degrees. At the same time, animation effects can also be achieved through the transition attribute of CSS3, allowing the background image to rotate smoothly.

.rotate-bg {
  width: 200px;
  height: 200px;
  background: url(bg.jpg) center center no-repeat;
  transform: rotate(0deg);
  transition: transform 1s ease;
}

.rotate-bg:hover {
  transform: rotate(360deg);
}

Through the above code, when the mouse hovers over the element, the background image will automatically rotate 360 ​​degrees, and a smooth animation effect will be achieved in the process.

In fact, using CSS3 background rotation effect can achieve very diverse effects, such as:

  1. Background image flight trajectory

Use multiple rotations background image to achieve a cool flight trajectory. In this effect, we need to use the combination of rotation and displacement in CSS3.

.flight-path {
  width: 200px;
  height: 200px;
  position: relative;
  overflow: hidden;
}

.flight-path img {
  width: 50px;
  height: 50px;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translateX(-50%) translateY(-50%) rotate(0deg);
  animation: path 5s linear infinite;
}

@keyframes path {
  0% {
    transform: translate(-50%, -50%) rotate(0deg);
  }
  100% {
    transform: translate(-100%, -50%) rotate(360deg);
  }
}

Through the above code, you can achieve the effect of multiple pictures flying along a path. Animation is implemented using key frames, and displacement and rotation are used together to achieve dynamic effects of background rotation.

  1. Background image fan switching

The fan switching effect is a very cool effect that can give the website a strong visual impact. In this effect, we need to use the CSS3 rotation and clip-path properties.

.sector {
  width: 200px;
  height: 200px;
  background: url(bg.jpg) center center no-repeat;
  transform: rotate(0deg);
  clip-path: polygon(
    0 0, 
    100% 0, 
    100% 100%, 
    50% 50%, 
    0 100%
  );
  transition: clip-path .8s ease-in-out;
}

.sector:hover {
  clip-path: polygon(
    0 0, 
    100% 0, 
    100% 100%, 
    0 100%
  );
}

Through the above code, you can achieve a background rotation effect that switches to a fan shape. Using the rotation and clip-path properties of CSS3, you can achieve dynamic deformation of components, and use the transition property to achieve smooth animation effects.

In web design, the background rotation effect can give the website a richer visual effect. By rationally applying this effect, the user experience of the website can be improved and the design of the website can be enhanced. I hope this article can help readers better master the background rotation technology in CSS3 and use it for cooler website designs.

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