仅使用CSS交叉淡化多个背景图像-单页设计 [英] Crossfade Multiple Background Images Using CSS Only - Single Page Design
问题描述
我正在使用多个div构建可响应的一页网站，这些div可以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中无限循环地相互淡入淡出。我试图按照本教程进行操作： http://css3.bradshawenterprises.com/cfimg/ 尽我所能，但无法适应我的特定需求。我相信我缺少该系统中必不可少的教程中的一部分代码，但是我一生无法理解为了使它能够在此系统中正常工作，我必须实现哪些部分以及不必实现哪些部分案件。 （部分是由于我的笨拙，部分是由于本教程被奇怪地分割了。）
I am building a responsive one-page website using multiple divs which scale to the height and width of the user's browser. I would like to have multiple background images crossfade into one other in an infinite loop within one of the divs on the website. I have attempted to follow this tutorial: http://css3.bradshawenterprises.com/cfimg/ to the best of my ability, but have been unable to adapt it to my specific needs. I believe I am missing a piece of code from the tutorial that is integral to this system, but I can't for the life of me understand which parts I must and which parts I mustn't implement in order for this to work in this case. (In part due to my nooby-ness and in part due to the fact that the tutorial is oddly segmented.)
我对Web开发人员一无所知，所以请
I am a total noob to Web Dev, so please forgive me (and correct me) if my code is terribly wrong.
<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;
}
谢谢。
推荐答案
我相信这就是您想要的。我不确定您使用的是哪种浏览器，但是如果它是像chrome这样的webkit浏览器，请确保在CSS动画上使用 -webkit-前缀：
I believe this is what you want. I'm not sure what browser you're using but if it's a webkit browser like chrome be sure to use the -webkit- prefix on your css animations:
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;
}
这篇关于仅使用CSS交叉淡化多个背景图像-单页设计的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
