2019年5月8日 0条评论

网站如何实现全屏动态缩放背景大图html代码？

<style type="text/css">
.slideshow {
display:block; position:fixed; left:0; top:0; overflow:hidden; z-index:-999;
  width: 100%;
  height: 100%;
}
.slideshow-image {
  position: absolute;
  width: 100%;
  height: 100%;
  background: no-repeat 50% 50%;
  background-size: cover;
  -webkit-animation-name: kenburns;
          animation-name: kenburns;
  -webkit-animation-timing-function: linear;
          animation-timing-function: linear;
  -webkit-animation-iteration-count: infinite;
          animation-iteration-count: infinite;
  -webkit-animation-duration: 16s;
          animation-duration: 16s;
  opacity: 1;
  -webkit-transform: scale(1.2);
          transform: scale(1.2);
}
.slideshow-image:nth-child(1) {
  -webkit-animation-name: kenburns-1;
          animation-name: kenburns-1;
  z-index: 3;
}
.slideshow-image:nth-child(2) {
  -webkit-animation-name: kenburns-2;
          animation-name: kenburns-2;
  z-index: 2;
}
.slideshow-image:nth-child(3) {
  -webkit-animation-name: kenburns-3;
          animation-name: kenburns-3;
  z-index: 1;
}
.slideshow-image:nth-child(4) {
  -webkit-animation-name: kenburns-4;
          animation-name: kenburns-4;
  z-index: 0;
}
@-webkit-keyframes kenburns-1 {
  0% {
    opacity: 1;
    -webkit-transform: scale(1.2);
            transform: scale(1.2);
  }
  1.5625% {
    opacity: 1;
  }
  23.4375% {
    opacity: 1;
  }
  26.5625% {
    opacity: 0;
    -webkit-transform: scale(1);
            transform: scale(1);
  }
  100% {
    opacity: 0;
    -webkit-transform: scale(1.2);
            transform: scale(1.2);
  }
  98.4375% {
    opacity: 0;
    -webkit-transform: scale(1.21176);
            transform: scale(1.21176);
  }
  100% {
    opacity: 1;
  }
}
@keyframes kenburns-1 {
  0% {
    opacity: 1;
    -webkit-transform: scale(1.2);
            transform: scale(1.2);
  }
  1.5625% {
    opacity: 1;
  }
  23.4375% {
    opacity: 1;
  }
  26.5625% {
    opacity: 0;
    -webkit-transform: scale(1);
            transform: scale(1);
  }
  100% {
    opacity: 0;
    -webkit-transform: scale(1.2);
            transform: scale(1.2);
  }
  98.4375% {
    opacity: 0;
    -webkit-transform: scale(1.21176);
            transform: scale(1.21176);
  }
  100% {
    opacity: 1;
  }
}
@-webkit-keyframes kenburns-2 {
  23.4375% {
    opacity: 1;
    -webkit-transform: scale(1.2);
            transform: scale(1.2);
  }
  26.5625% {
    opacity: 1;
  }
  48.4375% {
    opacity: 1;
  }
  51.5625% {
    opacity: 0;
    -webkit-transform: scale(1);
            transform: scale(1);
  }
  100% {
    opacity: 0;
    -webkit-transform: scale(1.2);
            transform: scale(1.2);
  }
}
@keyframes kenburns-2 {
  23.4375% {
    opacity: 1;
    -webkit-transform: scale(1.2);
            transform: scale(1.2);
  }
  26.5625% {
    opacity: 1;
  }
  48.4375% {
    opacity: 1;
  }
  51.5625% {
    opacity: 0;
    -webkit-transform: scale(1);
            transform: scale(1);
  }
  100% {
    opacity: 0;
    -webkit-transform: scale(1.2);
            transform: scale(1.2);
  }
}
@-webkit-keyframes kenburns-3 {
  48.4375% {
    opacity: 1;
    -webkit-transform: scale(1.2);
            transform: scale(1.2);
  }
  51.5625% {
    opacity: 1;
  }
  73.4375% {
    opacity: 1;
  }
  76.5625% {
    opacity: 0;
    -webkit-transform: scale(1);
            transform: scale(1);
  }
  100% {
    opacity: 0;
    -webkit-transform: scale(1.2);
            transform: scale(1.2);
  }
}
@keyframes kenburns-3 {
  48.4375% {
    opacity: 1;
    -webkit-transform: scale(1.2);
            transform: scale(1.2);
  }
  51.5625% {
    opacity: 1;
  }
  73.4375% {
    opacity: 1;
  }
  76.5625% {
    opacity: 0;
    -webkit-transform: scale(1);
            transform: scale(1);
  }
  100% {
    opacity: 0;
    -webkit-transform: scale(1.2);
            transform: scale(1.2);
  }
}
@-webkit-keyframes kenburns-4 {
  73.4375% {
    opacity: 1;
    -webkit-transform: scale(1.2);
            transform: scale(1.2);
  }
  76.5625% {
    opacity: 1;
  }
  98.4375% {
    opacity: 1;
  }
  100% {
    opacity: 0;
    -webkit-transform: scale(1);
            transform: scale(1);
  }
}
@keyframes kenburns-4 {
  73.4375% {
    opacity: 1;
    -webkit-transform: scale(1.2);
            transform: scale(1.2);
  }
  76.5625% {
    opacity: 1;
  }
  98.4375% {
    opacity: 1;
  }
  100% {
    opacity: 0;
    -webkit-transform: scale(1);
            transform: scale(1);
  }
}
h1 {
  position: absolute;
  top: 50%;
  left: 50%;
  -webkit-transform: translate3d(-50%, -50%, 0);
          transform: translate3d(-50%, -50%, 0);
  z-index: 99;
  text-align: center;
  font-family: Raleway, sans-serif;
  font-weight: 300;
  text-transform: uppercase;
  background-color: rgba(255, 255, 255, 0.75);
  box-shadow: 0 1em 2em -1em rgba(0, 0, 0, 0.5);
  padding: 1em 2em;
  line-height: 1.5;
}
h1 small {
  display: block;
  text-transform: lowercase;
  font-size: .7em;
}
h1 small:first-child {
  border-bottom: 1px solid rgba(0, 0, 0, 0.25);
  padding-bottom: .5em;
}
h1 small:last-child {
  border-top: 1px solid rgba(0, 0, 0, 0.25);
  padding-top: .5em;
}
</style>

<h1>
	<small>我爱搜API数据服务中心</small>小洋vier<small>小洋技术服务中心-小洋网络科技</small> 
</h1>

<div class="slideshow">
	<div class="slideshow-image" style="background-image:url('https://api.oxx0.com/gif.html?type=dm');">
	</div>
	<div class="slideshow-image" style="background-image:url('https://api.oxx0.com/gif.html?type=fj');">
	</div>
	<div class="slideshow-image" style="background-image:url('https://api.oxx0.com/gif.html?type=yx');">
	</div>
	<div class="slideshow-image" style="background-image:url('https://api.oxx0.com/gif.html?type=ka');">
	</div>
</div>

运行代码清空代码复制代码

我爱搜API数据服务中心小洋vier小洋技术服务中心-小洋网络科技

如果要添加多个背景图，记得修改css里面的百分比参数，这里默认是4张背景。

上面这个是纯css实现的，另外还有一个js来实现的。效果也很不错哦。请点击衔接查看：https://www.oxx0.com/post-1164.html

《温馨提示：如果无法复制请选中后选择剪切代码》》

网站如何实现全屏动态缩放背景大图html代码？-下载页面

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热度：1185° 评分：8.7 发布时间： 2019年5月8日

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