前端笔记:css3动画transition和animation

彭世瑜 2020-11-13 00:08:31
前端 css CSS3 笔记 动画


css3动画

分类:

  • 帧动画
  • 过渡动画

CSS3动画属性:

  • transition
  • animation

常用属性

  • transform

动画库:

  • swiper
  • vue-transition
  • svg
  • animate.css

transition过渡

语法

transition: property duration timing-function delay;

属性名称property

过渡时间duration

时间函数timing-function

延迟时间delay

2、注意:

  • display不能和transition一起使用

  • transition后面尽量不要跟all

  • 常见闪动可以persp和backface-visibility

.box{

width: 200px;
height: 200px;
background-color: #000000;
margin-bottom: 20px;
}
// 鼠标经过变化宽度
.trasition-1{

// transition: width 2s linear 1s;
transition: width 2s linear;
&:hover{

width: 500px;
}
}
// 鼠标经过旋转
.trasition-2{

transition: transform 2s ease-out;
&:hover{

transform: rotate(45deg);
}
}

animation动画

语法

animation: name duration timing-function delay iteration-count direction fill-mode play-state;

动画名称(name)@keyframes

过渡时间(duration)

时间函数(timing-function)

延迟时间(delay)

播放次数(iteration-count)

播放方向(direction)轮流播放和反向播放

停止播放的状态(fill-mode)

是否暂停(play-state)

.box{

width: 200px;
height: 200px;
background-color: #000000;
margin-bottom: 20px;
}
// 鼠标经过移动
.animation-1{

&:hover{

animation: move 2s linear;
}
}
@keyframes move{

100%{

transform: translateX(200px);
}
}
// 小球滚动
.animation-2{

border-radius: 50%;
animation: jump 2s cubic-bezier(0.4,-0.04, 0.94, 0.29) infinite;
}
@keyframes jump{

0%{

transform: translateX(0px);
}
40%{

transform: translateX(200px);
}
60%{

transform: translateX(200px);
clip-path: ellipse(50% 50% at 50% 50%);
}
100%{

transform: translateX(0px);
clip-path: ellipse(50% 45% at 50% 48%);
}
}
// 菊花图旋转
.animation-3{

width: 100px;
height: 111px;
animation: round 1s steps(12) infinite;
background: url(./loading.jpg) no-repeat;
}
@keyframes round{

100%{

transform: rotate(360deg);
}
}

时间函数

时间函数:管理动画在单位帧内播放的速度曲线
三次贝塞尔函数的数学函数
预设值:

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

steps作用是每一个关键帧,而不是整个时间

过渡和动画在js中的监听

animationstart
animationend
trasitionend
animationitertion


// 过渡事件监听
let transitionend = ()=>{

console.log("transitionend");
}
let $box = document.querySelector('.trasition-1');
// IE FireFox已经支持
$box.addEventListener("transitionend", transitionend);
// 360 safari chrome下需要兼容处理
$box.addEventListener("WebkitTransitionend", transitionend);
版权声明
本文为[彭世瑜]所创,转载请带上原文链接,感谢
https://pengshiyu.blog.csdn.net/article/details/109442845

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