CSS 如何让css3动画永远循环

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时间:2020-08-30 02:23:42  来源:igfitidea点击:

How to have css3 animation to loop forever

cssloopsanimationkeyframeforever

提问by CuRSoR

I want to have the whole set of animation to play forever. When the last photo fades off, I want the first one to appear again an so on. What I did (and I dont like) is set the page to reload at the end of the last photo fade out. Is there any other way to do this using css???

我想让整套动画永远播放。当最后一张照片淡出时,我希望第一张再次出现,以此类推。我所做的(我不喜欢)是将页面设置为在最后一张照片淡出结束时重新加载。有没有其他方法可以使用 css 来做到这一点???

<html>
    <head>
        <style>
.content{
    height: 400px !important;
    /*margin: auto !important;*/
    overflow: hidden !important;
    width: 780px !important;
}

.imgholder{
    height: 400px;
    margin: auto;
    width: 780px;
}

.photo1{
    opacity: 0;
            animation: fadeinphoto 7s 1; 
       -moz-animation: fadeinphoto 7s 1; 
    -webkit-animation: fadeinphoto 7s 1; 
         -o-animation: fadeinphoto 7s 1; 
    float: left;
    position: relative;
    top: 0px;
    z-index: 1;
}

.photo2 {
    opacity: 0;
            animation: fadeinphoto 7s 5s 1;
       -moz-animation: fadeinphoto 7s 5s 1;
    -webkit-animation: fadeinphoto 7s 5s 1;
         -o-animation: fadeinphoto 7s 5s 1;
    float: left;
    position: relative;
    top: -400px;
    z-index: 1;
}
.photo3 {
    opacity:0;
            animation: fadeinphoto 7s 10s 1;
       -moz-animation: fadeinphoto 7s 10s 1;
    -webkit-animation: fadeinphoto 7s 10s 1;
         -o-animation: fadeinphoto 7s 10s 1;
    float: left;
    position: relative;
    top: -800px;
    z-index: 1;
}

.photo4 {
    opacity: 0;
    animation: fadeinphoto 7s 15s 1;
    -moz-animation: fadeinphoto 7s 15s 1;
    -webkit-animation: fadeinphoto 7s 15s 1;
    -o-animation: fadeinphoto 7s 15s 1;
    float: left;
    position: relative;
    top: -1200px;
    z-index: 1;
}

.photo5 {
    opacity: 0;
            animation: fadeinphoto 7s 20s 1;
       -moz-animation: fadeinphoto 7s 20s 1;
    -webkit-animation: fadeinphoto 7s 20s 1;
         -o-animation: fadeinphoto 7s 20s 1;
    float: left;
    position: relative;
    top: -1600px;
    z-index: 1;
}

/* Animation Keyframes*/
@keyframes fadeinphoto {
    0% { opacity: 0; }
    50% { opacity: 1; }
    100% { opacity: 0; }
}

@-moz-keyframes fadeinphoto {
    0% { opacity: 0; }
    50% { opacity: 1; }
    A100% { opacity: 0; }
}

@-webkit-keyframes fadeinphoto {
    0% { opacity: 0; }
    50% { opacity: 1; }
    100% { opacity: 0; }
}

@-o-keyframes fadeinphoto {
    0% { opacity: 0; }
    50% { opacity: 1; }
    100% { opacity: 0; }
}
        </style>
        <body>
            <div class="content">
                <div class="imgholder">
                    <img src="images/image1.jpg" width="780" height="400" class="photo1"/>
                    <img src="images/image2.JPG" width="780" height="400" class="photo2"/>
                    <img src="images/image3.JPG" width="780" height="400" class="photo3"/>
                    <img src="images/image4.jpg" width="780" height="400" class="photo4"/>
                    <img src="images/image5.jpg" width="780" height="400" class="photo5"/>
                </div>
            </div>
        </body>
    </head>
</html>

回答by Elad Shechter

add this styles

添加此样式

animation-iteration-count:infinite;

回答by Mark Eriksson

Whilst Elad's solution will work, you can also do it inline:

虽然 Elad 的解决方案可行,但您也可以内联进行:

   -moz-animation: fadeinphoto 7s 20s infinite;
-webkit-animation: fadeinphoto 7s 20s infinite;
     -o-animation: fadeinphoto 7s 20s infinite;
        animation: fadeinphoto 7s 20s infinite;

回答by Marco Bernardini

I stumbled upon the same problem: a page with many independent animations, each one with its own parameters, which must be repeated forever.

我偶然发现了同样的问题:一个页面有许多独立的动画,每个动画都有自己的参数,必须永远重复。

Merging this cluewith this other clueI found an easy solution: after the end of all your animations the wrapping divis restored, forcing the animations to restart.

将此线索另一条线索合并,我找到了一个简单的解决方案:在所有动画结束后,包装div被恢复,强制动画重新启动。

All you have to do is to add these few lines of Javascript, so easy they don't even need any external library, in the <head>section of your page:

您所要做的就是在<head>您的页面部分添加这几行 Javascript,非常简单,它们甚至不需要任何外部库:

<script>
setInterval(function(){
var container = document.getElementById('content');
var tmp = container.innerHTML;
container.innerHTML= tmp;
}, 35000 // length of the whole show in milliseconds
);
</script>

BTW, the closing </head>in your code is misplaced: it must be before the starting <body>.

顺便说一句,</head>您代码中的结束位置放错了位置:它必须在开始之前<body>