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Explanation of the code to implement preloaded animation effects simply using CSS

巴扎黑
巴扎黑Original
2017-09-07 09:35:182480browse

This article will share with you a simple code to achieve CSS preloading animation effect. It is very good and has reference value. Friends who need it can refer to it

Effect diagram

Explanation of the code to implement preloaded animation effects simply using CSS


<style>
    #loading {
        position:absolute;
        left:0;
        top:0;
        width:100%;
        height:100%;
        background: #121220;
        overflow:hidden;
        z-index:9999;
    }
    /*加载圈*/
    .spinner {
        margin:0 auto;
        width:60px;
        height:60px;
        position:relative;
        top:40%;
    }
    .container1 > p,.container2 > p,.container3 > p {
        width:15px;
        height:15px;
        background-color:#fff;
        border-radius:100%;
        position:absolute;
        -webkit-animation:bouncedelay 1.2s infinite ease-in-out;
        animation:bouncedelay 1.2s infinite ease-in-out;
        -webkit-animation-fill-mode:both;
        animation-fill-mode:both;
    }
    .spinner .spinner-container {
        position:absolute;
        width:100%;
        height:100%;
    }
    .container2 {
        -webkit-transform:rotateZ(45deg);
        transform:rotateZ(45deg);
    }
    .container3 {
        -webkit-transform:rotateZ(90deg);
        transform:rotateZ(90deg);
    }
    .circle1 {
        top:0;
        left:0;
    }
    .circle2 {
        top:0;
        right:0;
    }
    .circle3 {
        right:0;
        bottom:0;
    }
    .circle4 {
        left:0;
        bottom:0;
    }
    .container2 .circle1 {
        -webkit-animation-delay:-1.1s;
        animation-delay:-1.1s;
    }
    .container3 .circle1 {
        -webkit-animation-delay:-1.0s;
        animation-delay:-1.0s;
    }
    .container1 .circle2 {
        -webkit-animation-delay:-0.9s;
        animation-delay:-0.9s;
    }
    .container2 .circle2 {
        -webkit-animation-delay:-0.8s;
        animation-delay:-0.8s;
    }
    .container3 .circle2 {
        -webkit-animation-delay:-0.7s;
        animation-delay:-0.7s;
    }
    .container1 .circle3 {
        -webkit-animation-delay:-0.6s;
        animation-delay:-0.6s;
    }
    .container2 .circle3 {
        -webkit-animation-delay:-0.5s;
        animation-delay:-0.5s;
    }
    .container3 .circle3 {
        -webkit-animation-delay:-0.4s;
        animation-delay:-0.4s;
    }
    .container1 .circle4 {
        -webkit-animation-delay:-0.3s;
        animation-delay:-0.3s;
    }
    .container2 .circle4 {
        -webkit-animation-delay:-0.2s;
        animation-delay:-0.2s;
    }
    .container3 .circle4 {
        -webkit-animation-delay:-0.1s;
        animation-delay:-0.1s;
    }
    @-webkit-keyframes bouncedelay {
        0%,80%,100% {
            -webkit-transform:scale(0.0)
        }
        40% {
            -webkit-transform:scale(1.0)
        }
    }
    @keyframes bouncedelay {
        0%,80%,100% {
            transform:scale(0.0);
            -webkit-transform:scale(0.0);
    }
        40% {
            transform:scale(1.0);
            -webkit-transform:scale(1.0);
        }
    }
</style>
<body>
    <p id="loading" >
        <p class="spinner">
          <p class="spinner-container container1">
            <p class="circle1"></p>
            <p class="circle2"></p>
            <p class="circle3"></p>
            <p class="circle4"></p>
          </p>
          <p class="spinner-container container2">
            <p class="circle1"></p>
            <p class="circle2"></p>
            <p class="circle3"></p>
            <p class="circle4"></p>
          </p>
          <p class="spinner-container container3">
            <p class="circle1"></p>
            <p class="circle2"></p>
            <p class="circle3"></p>
            <p class="circle4"></p>
          </p>
        </p>
    </p>
</body>

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