Question

我正在创建一个网站，我想知道是否可以制作背景图片的幻灯片。没有JavaScript，这可能吗？如果没有，我仍然愿意接受建议。

我在顶部有一个固定的NarrowBar，所以我避免绝对位置。

HTML

<div class="back1">
</div>

CSS

.back1{
height:550px;
margin-left:-5px;
margin-right:-8px;
background-image: url("images/Image.jpg");
background-size: cover;
background-repeat: no-repeat;
background-position: center;

}

Answer 1

是的！这里someone's codepen显示了一个解决方案，但谷歌搜索＆＃34;仅css背景图片幻灯片＆＃34;会给你更多的选择。令人费解的关键部分是使用CSS关键帧。

HAML / HTML

%ul.slideshow
%li
  %h3 The Seasons
  %span Summer

%li
  %span Fall

%li
  %span Winter

%li
  %span Spring

CSS

@import "bourbon";

html {
  min-height: 100%;
}

body {
  height: 100%;
}

// length of each slide in seconds
$animation-delay: 6s;

.slideshow {
  list-style: none;
  z-index: 1;
  li {
    span { 
      width: 100%;
      height: 100%;
      position: absolute;
      top: 0px;
      left: 0px;
      color: transparent;
      background-size: cover;
      background-position: 50% 50%;
      background-repeat: none;
      opacity: 0;
      z-index: 0;
      -webkit-backface-visibility: hidden;
      backface-visibility: hidden;
      // multiply slide duration by the total number of slides
      @include animation(imageAnimation $animation-delay * 4 linear infinite 0s);
    }
    h3 {
      position: absolute;
      text-align: center;
      z-index: 2;
      bottom: 150px;
      left: 0;
      right: 0;
      opacity: 0;
      font-size: em(65px);
      font-family: 'Josefin Sans', sans-serif;
      text-transform: uppercase;
      color: #fff;
      // multiply slide duration by the total number of slides
      @include animation(titleAnimation $animation-delay * 4 linear 1 0s);

      @media only screen and (min-width: 768px) {
        bottom: 30px;
        font-size: em(130px);
      }

      @media only screen and (min-width: 1024px) {
        font-size: em(175px);
      }
    }
  }
}

// add and remove new slides here, maintaning the animation-delay format
.slideshow li:nth-child(1) span { 
  background-image: url(https://s3-us-west-2.amazonaws.com/s.cdpn.io/203277/summer-slide.jpg);
}
.slideshow li:nth-child(2) span { 
  background-image: url(https://s3-us-west-2.amazonaws.com/s.cdpn.io/203277/fall-slide.jpg);
  @include animation-delay($animation-delay);
}
.slideshow li:nth-child(3) span { 
  background-image: url(https://s3-us-west-2.amazonaws.com/s.cdpn.io/203277/winter-slide.jpg);
  @include animation-delay($animation-delay * 2);
}
.slideshow li:nth-child(4) span { 
  background-image: url(https://s3-us-west-2.amazonaws.com/s.cdpn.io/203277/spring-slide.jpg);
  @include animation-delay($animation-delay * 3);
}

// animation for the slideshow images
@include keyframes(imageAnimation) {
  0% {
    opacity: 0;
    @include animation-timing-function(ease-in);
  }
  12.5% {
    opacity: 1;
    @include animation-timing-function(ease-out);
  }
  25% {
    opacity: 1;
  }
  37.5% {
    opacity: 0;
  }
  100% {
    opacity: 0;
  }
}

// animation for the title
@include keyframes(titleAnimation) {
  0% {
    opacity: 0;
  }
  12.5% {
    opacity: 1;
  }
  25% {
    opacity: 1;
  }
  37.5% {
    opacity: 0;
  }
  100% {
    opacity: 0;
  }
}

// modernizr is used to show the first slide as a fallback for when css animations are not supported
.no-cssanimations .slideshow li span {
  opacity: 1;
}

Answer 2

请尝试以下链接。全屏背景图片仅限css。

https://tympanus.net/codrops/2012/01/02/fullscreen-background-image-slideshow-with-css3/

Css背景幻灯片

2 个答案: