我正在使用多个 div 构建一个响应式单页网站，这些 div 可缩放到用户浏览器的高度和宽度。我想让多个背景图像在网站上的一个 div 内无限循环地交叉淡入淡出。我尝试按照本教程进行操作：http://css3.bradshawenterprises.com/cfimg/ http://css3.bradshawenterprises.com/cfimg/尽我所能，但无法使其适应我的特定需求。我相信我遗漏了教程中的一段代码，该代码是该系统不可或缺的一部分，但我一生都无法理解我必须实现哪些部分以及不能实现哪些部分才能使其在这个系统中工作案件。 （部分是由于我的笨拙，部分是由于该教程的分段方式很奇怪。）
我对 Web 开发完全是菜鸟，所以如果我的代码有严重错误，请原谅我（并纠正我）。
<html>
<body>
<div id="home" class="panel">
<div class="inner">
<div id="backgroundchange">
<div id="back1"></div>
<div id="back2"></div>
<div id="back3"></div>
<div id="back4"></div>
<div id="back5"></div>
</div>
</div>
</div>
<body>
<html>
<!--Div Formatting-->
html, body {
height: 100%;
margin: 0;
}
.panel {
font-family: "Source Sans Pro", Helvetica, Arial, sans-serif;
color: white;
height: 100%;
min-width: 100%;
text-align: center;
display: table;
margin: 0;
background: #1c1c1c;
padding: 0 0;
}
.panel .inner {
display: table-cell;
vertical-align: middle;
}
<!--Background Animation-->
#backgroundchange.backgroundimg {
-webkit-background-size: cover;
-moz-background-size: cover;
-o-background-size: cover;
background-size: cover;
transition: background-image 1s ease-in-out;
}
#back1 {
background: url(../img/Back1.png) no-repeat center center fixed;
}
#back2 {
background: url(../img/Back2.png) no-repeat center center fixed;
}
#back3 {
background: url(../img/Back3.png) no-repeat center center fixed;
}
#back4 {
background: url(../img/Back4.png) no-repeat center center fixed;
}
@keyframes cf4FadeInOut {
0% {
opacity: 1;
}
17% {
opacity: 1;
}
25% {
opacity: 0;
}
92% {
opacity: 0;
}
100% {
opacity: 1;
}
}
#backgroundchange div:nth-of-type(1) {
animation-delay: 6s;
}
#backgroundchange div:nth-of-type(2) {
animation-delay: 4s;
}
#backgroundchange div:nth-of-type(3) {
animation-delay: 2s;
}
#backgroundchange div:nth-of-type(4) {
animation-delay: 0;
}
先感谢您。
我相信这就是你想要的。我不确定您使用的是什么浏览器，但如果它是像 chrome 这样的 webkit 浏览器，请务必使用-webkit-CSS 动画的前缀：
HTML
<div id="home" class="panel">
<div class="inner">
<div id="backgroundchange">
<div class="backgroundimg" id="back1"></div>
<div class="backgroundimg" id="back2"></div>
<div class="backgroundimg" id="back3"></div>
<div class="backgroundimg" id="back4"></div>
<div class="backgroundimg" id="back5"></div>
</div>
</div>
</div>
CSS
html, body {
height: 100%;
margin: 0;
}
.panel {
font-family: "Source Sans Pro", Helvetica, Arial, sans-serif;
color: white;
height: 100%;
min-width: 100%;
text-align: center;
display: table;
margin: 0;
background: #1c1c1c;
padding: 0 0;
}
.panel .inner {
display: table-cell;
vertical-align: middle;
}
.backgroundimg {
-webkit-background-size: cover;
-moz-background-size: cover;
-o-background-size: cover;
background-size: cover;
position: absolute;
top: 0;
left: 0;
height: 100%;
width: 100%;
}
#back1 {
background: url("http://www.placecage.com/500/700") no-repeat center fixed;
}
#back2 {
background: url("http://www.placecage.com/500/600") no-repeat center fixed;
}
#back3 {
background: url("http://www.placecage.com/500/500") no-repeat center fixed;
}
#back4 {
background: url("http://www.placecage.com/500/800") no-repeat center fixed;
}
#back5 {
background: url("http://www.placecage.com/500/900") no-repeat center fixed;
}
@keyframes backgroundchangeFadeInOut {
0% {
opacity:1;
}
17% {
opacity:1;
}
25% {
opacity:0;
}
92% {
opacity:0;
}
100% {
opacity:1;
}
}
@-webkit-keyframes backgroundchangeFadeInOut {
0% {
opacity:1;
}
17% {
opacity:1;
}
25% {
opacity:0;
}
92% {
opacity:0;
}
100% {
opacity:1;
}
}
#backgroundchange div:nth-of-type(1) {
animation-delay: 8s;
-webkit-animation-delay: 8s;
}
#backgroundchange div:nth-of-type(2) {
animation-delay: 6s;
-webkit-animation-delay: 6s;
}
#backgroundchange div:nth-of-type(3) {
animation-delay: 4s;
-webkit-animation-delay: 4s;
}
#backgroundchange div:nth-of-type(4) {
animation-delay: 2s;
-webkit-animation-delay: 2s;
}
#backgroundchange div:nth-of-type(5) {
animation-delay: 0;
-webkit-animation-delay: 0;
}
#backgroundchange div {
animation-name: backgroundchangeFadeInOut;
animation-timing-function: ease-in-out;
animation-iteration-count: infinite;
animation-duration: 8s;
-webkit-animation-name: backgroundchangeFadeInOut;
-webkit-animation-timing-function: ease-in-out;
-webkit-animation-iteration-count: infinite;
-webkit-animation-duration: 8s;
}
FIDDLE http://jsfiddle.net/h2fzvyr5/
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