问题

How can I have two CSS animations playing at different speeds?

The image should be rotating and growing at the same time.
The rotation will cycle every 2 seconds.
The growth will cycle every 4 seconds.

Example Code:

.image {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 120px;
    height: 120px;
    margin:-60px 0 0 -60px;
    -webkit-animation:spin 2s linear infinite;
    -webkit-animation:scale 4s linear infinite;
}

@-webkit-keyframes spin { 
    100% { 
        transform: rotate(180deg);
    } 
}

@-webkit-keyframes scale {
    100% {
         transform: scaleX(2) scaleY(2);
    }
}

http://jsfiddle.net/Ugc5g/3388/ - only one animation (the last one declared) plays.

回答1:

TL;DR

With a comma, you can specify multiple animations each with their own properties.

Example:

animation: rotate 1s, spin 3s;

Original answer

There are two issues here:

-webkit-animation:spin 2s linear infinite;
-webkit-animation:scale 4s linear infinite;

The second line replaces the first one. So, has no effect.

Both keyframes applies on the same property transform

As an alternative you could to wrap the image in a <div> and animate each one separately and at different speeds.

http://jsfiddle.net/rnrlabs/x9cu53hp/

.scaler {
    position: absolute;
    top: 100%;
    left: 50%;
    width: 120px;
    height: 120px;
    margin:-60px 0 0 -60px;
    animation: scale 4s infinite linear;    
}

.spinner {
    position: relative;
    top: 150px;
    animation: spin 2s infinite linear;
}


@keyframes spin { 
    100% { 
        transform: rotate(180deg);
    } 
}

@keyframes scale {
    100% {
         transform: scaleX(2) scaleY(2);
    }
}

<div class="spinner">
<img class="scaler" src="http://makeameme.org/media/templates/120/grumpy_cat.jpg" alt="" width="120" height="120">
<div>

回答2:

In case anyone new is coming along and catching this thread, you can specify multiple animations--each with their own properties--with a comma.

Example:

animation: rotate 1s, spin 3s;

回答3:

You can indeed run multiple animations simultaneously, but your example has two problems. First, the syntax you use only specifies one animation. The second style rule hides the first. You can specify two animations using syntax like this:

-webkit-animation-name: spin, scale
-webkit-animation-duration: 2s, 4s

as in this fiddle (where I replaced "scale" with "fade" due to the other problem explained below... Bear with me.): http://jsfiddle.net/rwaldin/fwk5bqt6/

Second, both of your animations alter the same CSS property (transform) of the same DOM element. I don't believe you can do that. You can specify two animations on different elements, the image and a container element perhaps. Just apply one of the animations to the container, as in this fiddle: http://jsfiddle.net/rwaldin/fwk5bqt6/2/

回答4:

you can try something like this

set the parent to rotate and the image to scale so that the rotate and scale time can be different

div {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 120px;
  height: 120px;
  margin: -60px 0 0 -60px;
  -webkit-animation: spin 2s linear infinite;
}
.image {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 120px;
  height: 120px;
  margin: -60px 0 0 -60px;
  -webkit-animation: scale 4s linear infinite;
}
@-webkit-keyframes spin {
  100% {
    transform: rotate(180deg);
  }
}
@-webkit-keyframes scale {
  100% {
    transform: scale(2);
  }
}

<div>
  <img class="image" src="http://makeameme.org/media/templates/120/grumpy_cat.jpg" alt="" width="120" height="120" />
</div>

回答5:

You cannot play two animations since the attribute can be defined only once. Rather why don't you include the second animation in the first and adjust the keyframes to get the timing right?

.image {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 120px;
    height: 120px;
    margin:-60px 0 0 -60px;
    -webkit-animation:spin-scale 4s linear infinite;
}

@-webkit-keyframes spin-scale { 
    50%{
        transform: rotate(360deg) scale(2);
    }
    100% { 
        transform: rotate(720deg) scale(1);
    } 
}

<img class="image" src="http://makeameme.org/media/templates/120/grumpy_cat.jpg" alt="" width="120" height="120">

来源：https://stackoverflow.com/questions/26986129/play-multiple-css-animations-at-the-same-time

标签

css

css3

css-animations

Play multiple CSS animations at the same time

问题