CSS3Loading动画

2022-06-26 03:24:44
病毒肆虐，只能宅在家中，手机越刷越恐慌，不如写点代码吧，在春天来临之前，让我们一边守望，也一边前行。
动画效果如图1：
图2
<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>loading动画</title>
    <style>
        * {
            margin: 0;
            padding: 0;
        }

        html,
        body {
            width: 100%;
            height: 100%;
            background-color: #db4d6d;
            display: flex;
            /*水平居中*/
            justify-content: center;
            /*垂直居中*/
            align-items: center;
        }

        .monster {
            width: 110px;
            height: 110px;
            border-radius: 20px;
            /* 圆角 */
            background-color: #e55a54;
            margin: 10px;
            display: flex;
            justify-content: center;
            align-items: center;
            flex-direction: column;
            /* 嘴巴和眼睛垂直排列 */

            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
            /* 阴影 */
            position: relative;
            /* 定位怪兽角 */
            animation: jumping 0.8s infinite alternate;
        }

        .monster .eye {
            width: 40%;
            height: 40%;
            border-radius: 50%;
            background-color: #fff;
            margin: 10px;
            display: flex;
            justify-content: center;
            align-items: center;

        }

        .monster .eye .eyeBall {
            width: 50%;
            height: 50%;
            border-radius: 50%;
            background-color: #0c4475;
            animation: eyemove 1.6s infinite alternate;
        }

        .monster .mouth {
            width: 32%;
            height: 12px;
            border-radius: 12px;
            background-color: #fff;
        }

        .monster::before,
        .monster::after {
            position: absolute;
            content: '';
            display: block;
            width: 20%;
            height: 10px;
            border-radius: 10px;
            background-color: #fff;
            top: -10px;
            left: 50%;
        }

        .monster::before {
            transform: translateX(-70%) rotate(45deg);
        }

        .monster::after {
            transform: translateX(-30%) rotate(-45deg);
        }

        .monster.blue {
            background-color: #0c4475;
            animation-delay: 0.5s;
        }

        /* 蓝色小怪兽眼睛粉色 */
        .monster.blue .eye .eyeBall,
        .monster.blue .mouth {
            background-color: #db4d6d;
        }

        /* 动画桢 */
        @keyframes jumping {
            50% {
                top: 0;
                box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);

            }

            100% {
                top: -50px;
                box-shadow: 0 120px 20px rgba(0, 0, 0, 0.1);

            }

        }

        @keyframes eyemove {

            0%,
            10% {
                transform: translate(50%);
            }

            100%,
            90% {
                transform: translate(-50%);
            }

        }

        .pageLoading {
            width: 100%;
            height: 100%;
            background-color: #0c4475;
            position: fixed;
            top: 0;
            left: 0;
            display: flex;
            justify-content: center;
            align-items: center;
            flex-direction: column;
            transition:opacity 0.5s;
        }

        .pageLoading .loading {
            width: 200px;
            height: 8px;
            background-color: #fff;
            border-radius: 5px;
            margin-top: 50px;
            overflow: hidden;
        }

        .pageLoading .loading .bar {
            width: 100%;
            height: 100%;
            background-color: #db4d6d;

        }
        .pageLoading.complete
        {
            opacity: 0;
        }
        .pageLoading.complete .monster{
            transition: 0.5s;
            transform:scale(0.1) rotateZ(360deg);
        }
        .monsterText
        {
            color: #fff;
        }
    </style>
</head>

<body>
    <h2 class="monsterText">Hello<br> world
    </h2>
    
    <div class="monster ">
        <div class="eye">
            <div class="eyeBall"></div>
        </div>
        <div class="mouth"></div>
    </div>
    <div class="monster blue">
        <div class="eye">
            <div class="eyeBall"></div>
        </div>
        <div class="mouth"></div>
    </div>
    <div class="pageLoading">
        <div class="monster ">
            <div class="eye">
                <div class="eyeBall"></div>
            </div>
            <div class="mouth"></div>
        </div>
        <div class="loading">
            <div class="bar"></div>
        </div>
    </div>
    <script src="https://cdn.staticfile.org/jquery/1.10.2/jquery.min.js"></script>
     <script>
        var per=0;
        var timer;
        timer=setInterval(function()
        {
            $('.bar').css('width',per+'%');
            per+=1;
            if(per>100)
            {
                $('.pageLoading').addClass("complete");
               setTimeout(() => {
                 $('.monsterText').html('<h2>We are Monster</h2>')  
               }, 3000);
                clearInterval(timer);
            }
        },30)
    </script>
</body>

</html>
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