Question

我正在使用多个div来构建一个响应性的单页网站，这些div可以扩展到用户浏览器的高度和宽度。我希望在网站上的一个div中的无限循环中将多个背景图像交叉淡入淡出。我试图尽可能地遵循本教程：http://css3.bradshawenterprises.com/cfimg/，但无法根据我的具体需求进行调整。我相信我错过了教程中的一段代码，这段代码对于这个系统是不可或缺的，但我不能理解我的生活，我必须了解哪些部分以及我必须实现哪些部分才能实现这一点。在这种情况下工作。（部分原因在于我的说法，部分原因在于教程被奇怪地分割了。）

我是Web Dev的总菜鸟，所以如果我的代码非常错误，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;
}

提前谢谢。

Answer 1

我相信这就是你想要的。我不确定您使用的浏览器是什么，但如果它是像chrome这样的webkit浏览器，请确保在您的css动画上使用-webkit-前缀：

<强> 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>

<强> 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

仅使用CSS交叉淡化多个背景图像 - 单页设计

1 个答案: