| 很久没有更新过素材了,今天给大家分享一个html5+css的现循环飘动的云朵案例素材,希望多各位站长有所帮助 
 效果展示: 
 HTML代码部分
 
 CSS代码部分复制代码<div class="warp">
            <div id="clouds">
                <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>
        </div>
 CSS代码:云层样式复制代码/*云层动画*/
@-webkit-keyframes moveclouds {
    from {
        margin-left: -200px
    }
    to {
        margin-left: 2200px
    }
}
@-moz-keyframes moveclouds {
    from {
        margin-left: -200px
    }
    to {
        margin-left: 2200px
    }
}
@-o-keyframes moveclouds {
    from {
        margin-left: -200px
    }
    to {
        margin-left: 2200px
    }
}
@keyframes moveclouds {
    from {
        margin-left: -200px
    }
    to {
        margin-left: 2200px
    }
}
 使用时注意云层CSS中的图片路径复制代码/*云*/
.cloud {
    position: absolute;
}
.cloud-1 {
    top: 60px;
    left: -100px;
    width: 98px;
    height: 36px;
    background: url(../images/cloud-1.png);
    -webkit-animation: moveclouds 145s infinite linear;
    -moz-animation: moveclouds 145s infinite linear;
    -o-animation: moveclouds 145s infinite linear;
    animation: moveclouds 145s infinite linear;
}
.cloud-2 {
    top: 170px;
    left: -420px;
    width: 91px;
    height: 35px;
    background: url(../images/cloud-2.png);
    -webkit-animation: moveclouds 135s infinite linear;
    -moz-animation: moveclouds 135s infinite linear;
    -o-animation: moveclouds 135s infinite linear;
    animation: moveclouds 135s infinite linear;
}
.cloud-3 {
    top: 140px;
    left: -380px;
    width: 88px;
    height: 34px;
    background: url(../images/cloud-3.png);
    -webkit-animation: moveclouds 38s infinite linear;
    -moz-animation: moveclouds 38s infinite linear;
    -o-animation: moveclouds 38s infinite linear;
    animation: moveclouds 38s infinite linear;
}
.cloud-4 {
    top: 120px;
    left: -300px;
    width: 135px;
    height: 53px;
    background: url(../images/cloud-4.png);
    -webkit-animation: moveclouds 103s infinite linear;
    -moz-animation: moveclouds 103s infinite linear;
    -o-animation: moveclouds 103s infinite linear;
    animation: moveclouds 103s infinite linear;
}
.cloud-5 {
    top: 230px;
    left: -200px;
    width: 100px;
    height: 40px;
    background: url(../images/cloud-5.png);
    -webkit-animation: moveclouds 65s infinite linear;
    -moz-animation: moveclouds 65s infinite linear;
    -o-animation: moveclouds 65s infinite linear;
    animation: moveclouds 65s infinite linear;
}
.cloud-6 {
    top: 40px;
    left: -180px;
    width: 141px;
    height: 39px;
    background: url(../images/cloud-6.png);
    -webkit-animation: moveclouds 30s infinite linear;
    -moz-animation: moveclouds 30s infinite linear;
    -o-animation: moveclouds 30s infinite linear;
    animation: moveclouds 30s infinite linear;
}
 云层图片下载:
 
 
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