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animation-timing-function

CSS animations are a great way to add visual interest and interactivity to a website. One of the key components of CSS animations is the animation-timing-function property. This property allows you to control the speed and pace of an animation, giving you greater control over how it looks and feels.

Brief Explanation of Animation Timing Function

The animation-timing-function property is used to specify the speed and pace of an animation. It allows you to control how quickly or slowly an animation progresses over time. The property takes a single value, which is a timing function. A timing function is a mathematical function that determines how an animation progresses over time.

There are several different timing functions available in CSS, each with its own unique characteristics. Some of the most commonly used timing functions include:

  • linear
  • ease
  • ease-in
  • ease-out
  • ease-in-out

The linear timing function causes an animation to progress at a constant rate over time. This means that the animation will move at the same speed from start to finish. The ease timing function, on the other hand, causes an animation to start slowly, speed up in the middle, and then slow down again at the end. This creates a more natural, organic-looking animation.

The ease-in timing function causes an animation to start slowly and then speed up as it progresses. The ease-out timing function does the opposite, causing an animation to start quickly and then slow down as it progresses. The ease-in-out timing function combines the characteristics of both ease-in and ease-out, creating an animation that starts slowly, speeds up in the middle, and then slows down again at the end.

Code Examples

Here are some examples of how the animation-timing-function property can be used in CSS:

Linear Timing Function

  
    .box {
      animation: move 2s linear;
    }

    @keyframes move {
      0% {
        transform: translateX(0);
      }
      100% {
        transform: translateX(100px);
      }
    }
  

In this example, the animation-timing-function property is set to linear. This causes the animation to progress at a constant rate over the course of 2 seconds. The animation moves a box element 100 pixels to the right using the translateX() transform function.

Ease Timing Function

  
    .box {
      animation: move 2s ease;
    }

    @keyframes move {
      0% {
        transform: translateX(0);
      }
      100% {
        transform: translateX(100px);
      }
    }
  

In this example, the animation-timing-function property is set to ease. This causes the animation to start slowly, speed up in the middle, and then slow down again at the end. The animation moves a box element 100 pixels to the right using the translateX() transform function.

Ease-In Timing Function

  
    .box {
      animation: move 2s ease-in;
    }

    @keyframes move {
      0% {
        transform: translateX(0);
      }
      100% {
        transform: translateX(100px);
      }
    }
  

In this example, the animation-timing-function property is set to ease-in. This causes the animation to start slowly and then speed up as it progresses. The animation moves a box element 100 pixels to the right using the translateX() transform function.

Ease-Out Timing Function

  
    .box {
      animation: move 2s ease-out;
    }

    @keyframes move {
      0% {
        transform: translateX(0);
      }
      100% {
        transform: translateX(100px);
      }
    }
  

In this example, the animation-timing-function property is set to ease-out. This causes the animation to start quickly and then slow down as it progresses. The animation moves a box element 100 pixels to the right using the translateX() transform function.

Ease-In-Out Timing Function

  
    .box {
      animation: move 2s ease-in-out;
    }

    @keyframes move {
      0% {
        transform: translateX(0);
      }
      100% {
        transform: translateX(100px);
      }
    }
  

In this example, the animation-timing-function property is set to ease-in-out. This causes the animation to start slowly, speed up in the middle, and then slow down again at the end. The animation moves a box element 100 pixels to the right using the translateX() transform function.

Conclusion

The animation-timing-function property is a powerful tool for controlling the speed and pace of CSS animations. By using different timing functions, you can create animations that look and feel natural, organic, and visually interesting. Experiment with different timing functions to find the one that works best for your particular animation.

References

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