CSS3:动画之间平滑过渡的变化:悬停

Question

我有一个具有无限css3动画的元素,当元素悬停时,它会被更改为另一个无限动画.一切都还可以,但有时动画变化过于有弹性,有没有办法让动画在动画之间平滑(可能在动画之间将元素带到初始状态)在mouseenter和mouseleave上？两个动画的开始和结束状态是相同的.

@keyframes first-animation {
0% { transform: scale3d(1,1,0);}
50% { transform: scale3d(0.8,0.8,0); }
100% { transform: scale3d(1,1,0); }
};

@keyframes second-animation {
0% { transform: scale3d(1,1,0); }
70% { transform: scale3d(0.7,0.7,0); }
80% { transform: scale3d(0.9,0.9,0); }
100% { transform: scale3d(1,1,0);  }
};

div{
animation: first-animation 1.7s ease-in-out infinite;
}

div:hover, div:focus{
animation: second-animation 1.1s ease-in-out infinite;
}

Answer 1

我不认为可以使用比例变换来实现.

你可以做一个技巧并从scale()更改为translateZ().应用透视时,净效果也将是一个比例.但有趣的一点是,将视角设置为高值,这种尺度效应可以做得非常小.透视是一种可动画的属性.

缺点是我们需要添加2个环绕层...但最终结果是这样.我保留了原始版本进行比较

@keyframes first-animation {
0% { transform: scale(1,1);}
50% { transform: scale(0.8,0.8); }
100% { transform: scale(1,1); }
}

@keyframes second-animation {
0% { transform: scale(1,1); }
70% { transform: scale(0.7,0.7); }
80% { transform: scale(0.9,0.9); }
100% { transform: scale(1,1);  }
}

.sample {
    background-color: lightblue;
    animation: first-animation 1.7s ease-in-out infinite;
}

.sample:hover {
animation: second-animation 1.1s ease-in-out infinite;
}

.dim {
    width: 200px;
    height: 200px;
}

.base1 {
    perspective: 1000px;
    transition: perspective 2s ease-out;
    position: absolute;
    left: 300px;
  top: 10px;
}
.base1:hover {
    perspective: 9999px;
}

.base2 {
    width: 100%;
    height: 100%;
    animation: animation1 1.7s ease-in-out infinite;
    perspective: 9999px;
    transition: perspective 2s ease-in;
}
.base1:hover .base2 {
    perspective: 1000px;
}

.inner {
    width: 100%;
    height: 100%;
    background-color: lightgreen;
    animation: animation2 1.1s ease-in-out infinite;
    transform-style: preserve-3d;
    perspective: 99999px;
}

@keyframes animation1 {
0% { transform: translateZ(0px);}
50% { transform: translateZ(-200px); }
100% { transform: translateZ(0px); }
}

@keyframes animation2 {
      0% { transform: translateZ(0px);}
     70% { transform: translateZ(-300px); }
     80% { transform: translateZ(-100px); }
    100% { transform: translateZ(0px); }
}

<div class="sample dim">SAMPLE</div>
<div class="base1 dim">
    <div class="base2">
        <div class="inner">DEMO</div>
    </div>
</div>