css3动画animation

admin · 发表于 2025-5-27 09:18:24

css3动画animation

<title>动画实现步骤</title>
<style>
.box {
width: 200px;
height: 100px;
background-color: pink;
animation: change 1s;
}
/* 动画一：宽度从200变化到800 */
/* @keyframes change {
from {
width: 200px;
}
to {
width: 800px;
}
} */
/* 动画二：从 200*100 变化到 300*300 变化到800*500 */
/* 百分比：表示的意思是动画时长的百分比 */
@keyframes change {
0% {
width: 200px;
height: 100px;
}
20% {
width: 300px;
height: 300px;
}
100% {
width: 800px;
height: 500px;
}
}
</style>
</head>
<body>
<div class="box"></div>
</body>

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<title>animation复合属性</title>
<style>
.box {
width: 200px;
height: 100px;
background-color: pink;
/* linear：匀速 */
animation: change 1s linear;
/* steps：分步动画，工作中，配合精灵图实现精灵动画 */
animation: change 1s steps(3);
/* 如果有两个时间，第一个是动画时长，第二个是延迟时间 */
animation: change 1s 2s;
/* 重复次数，infinite：无限循环 */
animation: change 1s 3;
animation: change 1s infinite;
/* alternate：反向 */
animation: change 1s infinite alternate;
/* 动画执行完毕时的状态， forwards：结束状态； backwards：开始状态（默认） */
animation: change 1s forwards;
animation: change 1s backwards;
}
/* 宽度从 200 变化到 800 */
@keyframes change {
from {
width: 200px;
}
to {
width: 800px;
}
}
</style>
</head>
<body>
<div class="box"></div>
</body>

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admin · 发表于 2025-5-28 08:12:42

<title>animation拆分写法</title>
<style>
.box {
width: 200px;
height: 100px;
background-color: pink;
/* 动画名称 */
animation-name: change;
/* 动画时长 */
animation-duration: 1s;
/* 播放次数 */
animation-iteration-count: infinite;
/* animation-play-state: paused; */
}
.box:hover {
/* 暂停动画 */
animation-play-state: paused;
}
/* 宽度从 200 变化到 800 */
@keyframes change {
0% {
width: 200px;
}
100% {
width: 800px;
}
}
</style>
</head>
<body>
<div class="box"></div>
</body>

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<title>走马灯</title>
<style>
* {
padding: 0;
margin: 0;
}
li {
list-style: none;
}
img {
display: block;
width: 200px;
}
.box {
width: 600px;
height: 112px;
border: 5px solid #000;
margin: 100px auto;
overflow: hidden;
}
.box ul {
display: flex;
animation: move 6s infinite linear;
}
/* 定义位移动画；ul使用动画；鼠标悬停暂停动画 */
@keyframes move {
0% {
transform: translate(0);
}
100% {
transform: translate(-1400px);
}
}
.box:hover ul {
animation-play-state: paused;
}
</style>
</head>
<body>
<div class="box">
<ul>
<li><img src="./images/1.jpg" alt="" /></li>
<li><img src="./images/2.jpg" alt="" /></li>
<li><img src="./images/3.jpg" alt="" /></li>
<li><img src="./images/4.jpg" alt="" /></li>
<li><img src="./images/5.jpg" alt="" /></li>
<li><img src="./images/6.jpg" alt="" /></li>
<li><img src="./images/7.jpg" alt="" /></li>
<li><img src="./images/1.jpg" alt="" /></li>
<li><img src="./images/2.jpg" alt="" /></li>
<li><img src="./images/3.jpg" alt="" /></li>
</ul>
</div>
</body>

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<title>精灵动画</title>
<style>
div {
width: 140px;
height: 140px;
border: 1px solid #000;
background-image: url(./images/bg.png);
animation: run 1s steps(12) infinite;
}
@keyframes run {
from {
background-position: 0 0;
}
to {
background-position: -1680px 0;
}
}
</style>
</head>
<body>
<div></div>
</body>

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<title>多组动画</title>
<style>
div {
width: 140px;
height: 140px;
/* border: 1px solid #000; */
background-image: url(./images/bg.png);
animation:
run 1s steps(12) infinite,
move 3s forwards
;
}
/* 当动画的开始状态样式跟盒子默认样式相同，可以省略动画开始状态的代码 */
@keyframes run {
/* from {
background-position: 0 0;
} */
to {
background-position: -1680px 0;
}
}
@keyframes move {
/* 0% {
transform: translate(0);
} */
100% {
transform: translate(800px);
}
}
</style>
</head>
<body>
<div></div>
</body>

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<title>全民出游季</title>
  <link rel="stylesheet" href="./css/index.css">
</head>
<body>
  
  <div class="cloud">
<img src="./images/yun1.png" alt="">
<img src="./images/yun2.png" alt="">
<img src="./images/yun3.png" alt="">
  </div>

  
  <div class="text">
<img src="./images/font1.png" alt="">
  </div>
</body>

* {
margin: 0;
padding: 0;
}
/* 大背景 */
/* 默认状态HTML和body的高度是0，所以导致cover缩放背景图不成功 */
html {
height: 100%;
}
body {
height: 100%;
background: url(../images/f1_1.jpg) no-repeat center 0 / cover;
/* background-size: cover; */
}
/* 云 */
.cloud img {
position: absolute;
left: 50%;
}
.cloud img:nth-child(1) {
margin-left: -250px;
top: 20px;
animation: cloud 1s infinite alternate linear;
}
.cloud img:nth-child(2) {
margin-left: 400px;
top: 100px;
animation: cloud 1s infinite alternate linear 0.4s;
}
.cloud img:nth-child(3) {
margin-left: -550px;
top: 200px;
animation: cloud 1s infinite alternate linear 0.6s;
}
@keyframes cloud {
100% {
transform: translate(20px);
}
}
/* 文字 */
.text img {
position: absolute;
left: 50%;
top: 50%;
transform: translate(-50%, -50%);
animation: text 1s;
}
/* 默认 → 小 → 大 → 小 → 默认 */
@keyframes text {
0% {
transform: translate(-50%, -50%) scale(1);
}
20% {
transform: translate(-50%, -50%) scale(0.1);
}
40% {
transform: translate(-50%, -50%) scale(1.4);
}
70% {
transform: translate(-50%, -50%) scale(0.8);
}
100% {
transform: translate(-50%, -50%) scale(1);
}
}

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