纯代码22步绘制唯美的日夜交替动画（CV即可运行+保姆级步骤教程的前端动画小案例）

Posted 2022-05-17 小丫么小牛马

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文章目录

前言
一、HTML(index.html)
- 1. 加入元素
二、CSS(style.css)
三、JS（index.js）
- 22. 设置元素间属性转换
总结

前言

今天分享一个唯美的日月交替的小动画，祝大家早安晚安，每日安好鸭！
仅需22步，带领大家，使用css+js绘制超好看的动画！大家可以跟着步骤一步一步编写，也可以直接复制完整代码至编译器，看效果！

ps:现在先贴代码啦，明天醒了更新具体的步骤，带领大家一步一步制作,感谢支持！

2022.5.13
今天更新具体步骤啦！
仅需22步，带领大家，使用css+js绘制超好看的动画！大家可以跟着步骤一步一步编写，也可以直接复制完整代码至编译器，看效果！

一、html(index.html)

1. 加入元素

分别加入我们需要的元素，天空，云彩，飞鸟，山川，太阳等，具体看代码中的注释

<!DOCTYPE html>
<html lang="en" >
<head>
    <meta charset="UTF-8">
    <title>早安、晚安动画</title>
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/meyer-reset/2.0/reset.min.css">
    <link rel="stylesheet" href="./style.css">

</head>
<body>
<div class="container-wrapper">
    <h1>Good morning, and in case I don't see ya, good afternoon, good evening, and good night!</h1>
    
    <p id="subtitle">点点小太阳鸭</p>
    <div class="container">
        <div class="circle-container">
            <!-- 天空部分 -->
            <div class="sky">
                <div class="sky-night">
                    <div class="stars">
                        <div class="shooting-star"></div>
                        <div class="star-group-1"></div>
                        <div class="star-group-2"></div>
                        <div class="star-group-3"></div>
                        <div class="star-group-4"></div>
                    </div>
                </div>

                <!-- 云彩 -->
                <div class="cloud cloud-1"></div>
                <div class="cloud cloud-2"></div>
                <div class="cloud cloud-3"></div>
                <div class="cloud cloud-4"></div>
                <div class="cloud cloud-5"></div>
                <div class="cloud cloud-6"></div>
                <div class="bird bird-1"></div>
                <div class="bird bird-2"></div>
                <div class="bird bird-3"></div>
            </div>

            <!-- 山川 -->
            <div class="mountains">
                <div class="mountain-back">
                    <div class="mountain-back-1"></div>
                    <div class="mountain-back-2"></div>
                </div>
                <div class="mountain-middle">
                    <div class="mountain-middle-1"></div>
                    <div class="mountain-middle-2"></div>
                </div>
                <div class="mountain-top">
                    <div class="mountain-top-1"></div>
                </div>
            </div>

            <!-- 太阳 -->
            <div class="sun-container">
                <div class="sun"></div>
            </div>

            <!-- 海洋 -->
            <div class="ocean">
                <div class="boat"></div>
                <div class="ocean-night">
                    <div class="moon"></div>

                    <!-- 山川 -->
                    <div class="mountains mountains-bottom">
                        <div class="mountain-back">
                            <div class="mountain-back-1"></div>
                            <div class="mountain-back-2"></div>
                        </div>
                        <div class="mountain-middle">
                            <div class="mountain-middle-1"></div>
                            <div class="mountain-middle-2"></div>
                        </div>
                        <div class="mountain-top">
                            <div class="mountain-top-1"></div>
                        </div>
                    </div>
                </div>
            </div>
        </div>
    </div>
</div>
<!-- partial -->
<script src='https://cdnjs.cloudflare.com/ajax/libs/jquery/3.4.1/jquery.min.js'></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/prefixfree/1.0.7/prefixfree.min.js"></script><script src="./index.js"></script>
</body>
</html>

运行效果：

二、CSS(style.css)

2. 重置浏览器样式

导入reset.min.css（已完成），重置浏览器标签的样式表,重新定义标签样式,覆盖浏览器的CSS默认属性,把浏览器提供的默认样式覆盖掉

@import url("https://fonts.googleapis.com/css?family=Sanchez");

* 
    padding: 0;
    margin: 0;
    -webkit-box-sizing: border-box;
    box-sizing: border-box;


*:before,
*:after 
    content: "";
    position: absolute;

运行效果：

3.设置字体样式

html 
    font-family: "Sanchez", serif;

运行效果：

4.将我们的元素居中

.container-wrapper 
    width: 100%;
    height: 100%;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-pack: center;
    -ms-flex-pack: center;
    justify-content: center;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -ms-flex-direction: column;
    flex-direction: column;

运行效果：

5.设置背景颜色

html 
    -webkit-transition: background-color 3s ease;
    -o-transition: background-color 3s ease;
    transition: background-color 3s ease;
    -webkit-transition-delay: 2s;
    -o-transition-delay: 2s;
    transition-delay: 2s;
    background-color: #fff7f4;

运行效果：

6.设置动画显示的位置

子绝父相，这是父元素，设置为相对定位

.container 
    width: 450px;
    height: 450px;
    position: relative;

7.设置夜晚时的背景色

我们将会在js中使用它

.container-night 
    background-color: #e4ecff;

8.将动画显示的区域设置为圆型

根据最终效果，我们将动画显示的区域设置为原型

.circle-container 
    width: 450px;
    height: 450px;
    -webkit-clip-path: circle(50% at 50% 50%);
    clip-path: circle(50% at 50% 50%);
    position: absolute;
    overflow: hidden;
    z-index: 100;

9.绘制白天时天空的样子

.sky 
    position: absolute;
    width: 100%;
    height: 55%;
    top: 0;
    background: -webkit-gradient(
            linear,
            left top,
            left bottom,
            from(#feb8b0),
            to(#fef9db)
    );
    background: -webkit-linear-gradient(#feb8b0, #fef9db);
    background: -o-linear-gradient(#feb8b0, #fef9db);
    background: linear-gradient(#feb8b0, #fef9db);
    z-index: 1;
    overflow: hidden;

运行效果：

10.绘制夜晚时天空的样子

绘制夜晚时天空的样子，我们使用opacity属性，将其设置为不可见，在js中使用toggleClass方法将该属性切换为1，使其可见，后头很多动画都是这么实现的。运行效果的图中将该属性设置为了1，方便大家先看到效果

.sky-night 
    position: absolute;
    width: 100%;
    height: 100%;
    background: -webkit-gradient(
            linear,
            left top,
            left bottom,
            from(#4c3f6d),
            color-stop(#6c62bb),
            to(#93b1ed)
    );
    background: -webkit-linear-gradient(#4c3f6d, #6c62bb, #93b1ed);
    background: -o-linear-gradient(#4c3f6d, #6c62bb, #93b1ed);
    background: linear-gradient(#4c3f6d, #6c62bb, #93b1ed);
    opacity: 0;
    -webkit-transition: opacity 3s;
    -o-transition: opacity 3s;
    transition: opacity 3s;
    -webkit-transition-delay: 2s;
    -o-transition-delay: 2s;
    transition-delay: 2s;

/*用于切换opacity属性*/
.sky-night-fade 
    opacity: 1;

运行效果：

11.创建昼夜交替动画

@-webkit-keyframes sky-night 
    0% 
        background: -webkit-gradient(
                linear,
                left top,
                left bottom,
                from(#feb8b0),
                to(#fef9db)
        );
        background: -webkit-linear-gradient(#feb8b0, #fef9db);
        background: linear-gradient(#feb8b0, #fef9db);
    
    100% 
        background: -webkit-gradient(
                linear,
                left top,
                left bottom,
                from(#4c3f6d),
                to(#96b5ee)
        );
        background: -webkit-linear-gradient(#4c3f6d, #96b5ee);
        background: linear-gradient(#4c3f6d, #96b5ee);
    


@keyframes sky-night 
    0% 
        background: -webkit-gradient(
                linear,
                left top,
                left bottom,
                from(#feb8b0),
                to(#fef9db)
        );
        background: -webkit-linear-gradient(#feb8b0, #fef9db);
        background: -o-linear-gradient(#feb8b0, #fef9db);
        background: linear-gradient(#feb8b0, #fef9db);
    
    100% 
        background: -webkit-gradient(
                linear,
                left top,
                left bottom,
                from(#4c3f6d),
                to(#96b5ee)
        );
        background: -webkit-linear-gradient(#4c3f6d, #96b5ee);
        background: -o-linear-gradient(#4c3f6d, #96b5ee);
        background: linear-gradient(#4c3f6d, #96b5ee);

12.绘制太阳

设置太阳的位置，并绘制太阳

.sun-container 
    z-index: 10;
    position: absolute;
    left: 0;
    right: 0;
    margin: auto;
    top: 0;
    bottom: 0;
    width: 290px;
    height: 290px;
    /*    background-color: rgba(255, 0, 255, 0.2);*/
    -webkit-transform-origin: center center;
    -ms-transform-origin: center center;
    transform-origin: center center;
    -webkit-transition: all 5s ease-in-out;
    -o-transition: all 5s ease-in-out;
    transition: all 5s ease-in-out;


.sun 
    position: absolute;
    width: 90px;
    height: 90px;
    border-radius: 50%;
    background: -webkit-gradient(
            linear,
            left top,
            left bottom,
            from(#fefefe),
            to(#fffbe8)
    );
    background: -webkit-linear-gradient(#fefefe, #fffbe8);
    background: -o-linear-gradient(#fefefe, #fffbe8);
    background: linear-gradient(#fefefe, #fffbe8);
    cursor: pointer;
    z-index: 10;

13.绘制海洋

13.1 海洋底层颜色

绘制海洋部分，及其动画效果，同样使用toggleClass设置动画停止后，海洋的样式

.ocean 
    position: absolute;
    width: 100%;
    height: 45%;
    bottom: 0;
    background: #ceefe8;
    z-index: 200;
    -webkit-animation: ocean-top 3s infinite;
    animation: ocean-top 3s infinite;
    opacity: 1;
    -webkit-transition: all 3s ease;
    -o-transition: all 3s ease;
    transition: all 3s ease;
    -webkit-transition-delay: 2s;
    -o-transition-delay: 2s;
    transition-delay: 2s;
    -webkit-transform-origin: top;
    -ms-transform-origin: top;
    transform-origin: top;

.animation-stop 
    -webkit-animation: ocean-top 3s forwards;
    animation: ocean-top 3s forwards;
    height: 42%;

运行效果：

13.2 绘制夜晚时的海洋

与夜晚时的天空同理

.ocean-night 
    position: relative;
    width: 100%;
    height: 100%;
    background: -webkit-gradient(
            linear,
            left top,
            left bottom,
            from(#8da6e6),
            to(#788cc9)
    );
    background: -webkit-linear-gradient(#8da6e6, #788cc9);
    background: -o-linear-gradient(#8da6e6, #788cc9);
    background: linear-gradient(#8da6e6, #788cc9);
    opacity: 0;
    -webkit-transition: opacity 3s;
    -o-transition: opacity 3s;
    transition: opacity 3s;
    -webkit-transition-delay: 2s;
    -o-transition-delay: 2s;
    transition-delay: 2s;
    z-index: 500;


.ocean-night-fade 
    opacity: 1;

运行效果（opacity设置为1后显示效果）：

13.3丰富海洋层次感并设置浮动动画

将海洋分为三层，显得更有层次感，并绘制海洋的动画效果，使海洋浮动起来

.ocean:before,
.ocean:after 
    width: 100%;
    bottom: 0;
    position: absolute;
    z-index: 200;


.ocean:before 
    height: 75%;
    background: #baeced;
    -webkit-animation: ocean-middle 3s infinite;
    animation: ocean-middle 3s infinite;


.ocean:after 
    height: 50%;
    background: #ace6f1;
    -webkit-animation: ocean-bottom 2s infinite;
    animation: ocean-bottom 2s infinite;


@-webkit-keyframes ocean-top 
    0% 
        -webkit-transform: rotate(0deg);
        transform: rotate(0deg);
    
    25% 
        -webkit-transform: rotate(-1deg);
        transform: rotate(-1deg);
    
    50% 
        -webkit-transform: rotate(0deg);
        transform: rotate(0deg);
    
    75% 
        -webkit-transform: rotate(1deg);
        transform: rotate(1deg);
    
    100% 
        -webkit-transform: rotate(0deg);
        transform: rotate(0deg);
    


@keyframes ocean-top 
    0% 
        -webkit-transform: rotate(0deg);
        transform: rotate(0deg);
    
    25% 
        -webkit-transform: rotate(-1deg);
        transform: rotate(-1deg);
    
    50% 
        -webkit-transform: rotate(0deg);
        transform: rotate(0deg);
    
    75% 
        -webkit-transform: rotate(1deg);
        transform: rotate(1deg);
    
    100% 
        -webkit-transform: rotate(0deg);
        transform: rotate(0deg);
    


@-webkit-keyframes ocean-middle 
    0% 
        height: 75%;
    
    50% 
        height: 77%;
        -webkit-transform: rotate(2deg);
        transform: rotate(2deg);
    
    100% 
        height: 75%;
    


@keyframes ocean-middle 
    0% 
        height: 75%;
    
    50% 
        height: 77%;
        -webkit-transform: rotate(2deg);
        transform: rotate(2deg);
    
    100% 
        height: 75%;
    


@-webkit-keyframes ocean-bottom 
    0% 
        height: 50%;
    
    50% 
        height: 52%;
        -webkit-transform: rotate(-2deg);
        transform: rotate(-2deg);
    
    100% 
        height: 50%;
    


@keyframes ocean-bottom 
    0% 
        height: 50%;
    
    50% 
        height: 52%;
        -webkit-transform: rotate(-2deg);
        transform: rotate(-2deg);
    
    100% 
        height: 50%;

运行效果：

14. 绘制小船

14.1 绘制船身

绘制船身，及切换夜晚时小船移出显示范围，同样是使用toggleClass

.boat 
    position: absolute;
    width: 50px;
    height: 0px;
    border-top: 7px solid #bb7074;
    border-left: 10px solid transparent;
    border-right: 10px solid transparent;
    left: 280px;
    /*    right: -50px;*/
    top: -5px;
    -webkit-transform-origin: center bottom;
    -ms-transform-origin: center bottom;
    transform-origin: center bottom;
    -webkit-animation: boat 5s infinite;
    animation: boat 5s infinite;
    -webkit-animation-delay: 0.25s;
    animation-delay: 0.25s;
    -webkit-transition: all 4s ease-in-out;
    -o-transition: all 4s ease-in-out;
    transition: all 4s ease-in-out;


.boat-sail 
    margin-left: -350px;

运行效果：

14.2 绘制船帆

.boat,
.boat:before,
.boat:after 
    position: absolute;
    z-index: 200;

.boat:before,
.boat:after 
    width: 0;
    height: 0;
    border: 0 solid transparent;


.boat:before 
    bottom: 8px;
    right: -6px;
    border-right-width: 15px;
    border-left-width: 0px;
    border-bottom: 30px solid #bb7074;


.boat:after 
    bottom: 8px;
    right: 11px;
    border-right-width: 0px;
    border-left-width: 20px;
    border-bottom: 48px solid #bb7074;

运行效果：

14.3 设置小船动画

设置小船在海洋上浮动的动画

@-webkit-keyframes boat 
    0% 
        -webkit-transform: rotate(1deg)translate(2px, 0px);
        transform: rotate(1deg)translate(2px, 0px);
    
    25% 
        -webkit-transform: rotate(-1deg) translate(-2px, -2px);
        transform: rotate(-1deg) translate(-2px, -2px);
    
    50% 
        -webkit-transform: rotate(1deg) translate(1px, 0px);
        transform: rotate(1deg) translate(1px, 0px);
    
    75% 
        -webkit-transform: rotate(-1deg) translate(-1px, -2px);
        transform: rotate(-1deg) translate(-1px, -2px);
    
    100% 
        -webkit-transform: rotate(1deg) translate(2px, 0px);
        transform: rotate(1deg) translate(2px, 0px);
    


@keyframes boat 
    0% 
        -webkit-transform: rotate(1deg)translate(2px, 0px);
        transform: rotate(1deg)translate(2px, 0px);
    
    25% 
        -webkit-transform: rotate(-1deg) translate(-2px, -2px);
        transform: rotate(-1deg) translate(-2px, -2px);
    
    50% 
        -webkit-transform: rotate(1deg) translate(1px, 0px);
        transform: rotate(1deg) translate(1px, 0px);
    
    75% 
        -webkit-transform: rotate(-1deg) translate(-1px, -2px);
        transform: rotate(-1deg) translate(-1px, -2px);
    
    100% 
        -webkit-transform: rotate(1deg) translate(2px, 0px);
        transform: rotate(1deg) translate(2px, 0px);

15. 绘制月亮

与太阳差不多

.moon 
    position: absolute;
    width: 90px;
    height: 90px;
    border-radius: 50%;
    background: -webkit-gradient(
            linear,
            left top,
            left bottom,
            from(#fefefe),
            to(#fffbe8)
    );
    background: -webkit-linear-gradient(#fefefe, #fffbe8);
    background: -o-linear-gradient(#fefefe, #fffbe8);
    background: linear-gradient(#fefefe, #fffbe8);
    opacity: 0;
    left: 80px;
    margin-top: 90px;
    -webkit-transition: opacity 1s ease;
    -o-transition: opacity 1s ease;
    transition: opacity 1s ease;


.moon-fade 
    opacity: 0.3;
    -webkit-transition-delay: 4s;
    -o-transition-delay: 4s;
    transition-delay: 4s;

16. 绘制飞鸟

16.1 设置三只鸟儿的位置及样式

.bird:before,
.bird:after 
    border: 2px solid #bb7074;
    border-bottom: 0;
    width: 18px;
    height: 8px;
    z-index: 200;


.bird 
    position: absolute;
    -webkit-animation: bird 1s infinite;
    animation: bird 1s infinite;
    z-index: 200;
    -webkit-transition: all 2s ease-in-out;
    -o-transition: all 2s ease-in-out;
    transition: all 2s ease-in-out;


.birds-fly 
    margin-left: 150px;
    margin-top: -100px;


.bird:after 
    border-top-left-radius: 18px;
    border-top-right-radius: 18px;
    border-right: 0;
    -webkit-animation: wing-right 1s infinite;
    animation: wing-right 1s infinite;
    -webkit-transform-origin: bottom left;
    -ms-transform-origin: bottom left;
    transform-origin: bottom left;


.bird:before 
    left: -19px;
    border-top-right-radius: 18px;
    border-top-left-radius: 18px;
    border-left: 0;
    -webkit-animation: wing-left 1s infinite;
    animation: wing-left 1s infinite;
    -webkit-transform-origin: bottom right;
    -ms-transform-origin: bottom right;
    transform-origin: bottom right;


.bird-1 
    left: 240px;
    top: 140px;
    -webkit-transform: scale(0.9)rotate(10deg);
    -ms-transform: scale(0.9)rotate(10deg);
    transform: scale(0.9)rotate(10deg);
    -webkit-animation-delay: 0.4s;
    animation-delay: 0.4s;


.bird-2 
    left: 280px;
    top: 120px;
    -webkit-transform: scale(0.8)rotate(-5deg);
    -ms-transform: scale(0.8)rotate(-5deg);
    transform: scale(0.8)rotate(-5deg);
    -webkit-animation-delay: 0.2s;
    animation-delay: 0.2s;


.bird-3 
    left: 250px;
    top: 100px;
    -webkit-transform: scale(1)rotate(8deg);
    -ms-transform: scale(1)rotate(8deg);
    transform: scale(1)rotate(8deg);

运行效果：

16.2 设置鸟儿飞行的动画

从小变大，展现从远处飞来的动画，以及翅膀的挥动（wing-left/wing-right），在步骤16.1中调用该动画

@-webkit-keyframes bird 
   0% 
       -webkit-transform: translate(0px, 0px);
       transform: translate(0px, 0px);
   
   50% 
       -webkit-transform: translate(2px, -3px);
       transform: translate(2px, -3px);
   
   100% 
       -webkit-transform: translate(0px, 0px);
       transform: translate(0px, 0px);
   


@keyframes bird 
   0% 
       -webkit-transform: translate(0px, 0px);
       transform: translate(0px, 0px);
   
   50% 
       -webkit-transform: translate(2px, -3px);
       transform: translate(2px, -3px);
   
   100% 
       -webkit-transform: translate(0px, 0px);
       transform: translate(0px, 0px);
   


@-webkit-keyframes wing-right 
   0% 
       -webkit-transform: rotate(0deg);
       transform: rotate(0deg);
   
   50% 
       -webkit-transform: rotate(10deg);
       transform: rotate(10deg);
   
   100% 
       -webkit-transform: rotate(0deg);
       transform: rotate(0deg);
   


@keyframes wing-right 
   0% 
       -webkit-transform: rotate(0deg);
       transform: rotate(0deg);
   
   50% 
       -webkit-transform: rotate(10deg);
       transform: rotate(10deg);
   
   100% 
       -webkit-transform: rotate(0deg);
       transform: rotate(0deg);
   


@-webkit-keyframes wing-left 
   0% 
       -webkit-transform: rotate(0deg);
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