css3 无缝轮播效果小demo(轮播效果/渐隐渐现效果)

轮播效果:

DOM部分:

<div id="banner">
  <ul>
    <li><img src="./images/banner-1.jpg" alt=""></li>
    <li><img src="./images/banner-2.jpg" alt=""></li>
    <li><img src="./images/banner-3.jpg" alt=""></li>
    <li><img src="./images/banner-4.jpg" alt=""></li>
    <!--将需要轮播的图片在复制一份-->
    <li><img src="./images/banner-1.jpg" alt=""></li>
  </ul>     
</div>

CSS部分:

#banner {
    width: 18rem;
    height: 12rem;
    overflow: hidden;
}
#banner>ul{
    width: 500%;
  /*动画:调用动画的规则名称 动画持续时间 动画过渡类型(线性) 循环次数(无限)*/ animation: imgMove 20s linear infinite;
/* list-style: none; */ } /* 暂停动画 */ #banner>ul:hover{
  /*鼠标移上让画面停止*/ animation
-play-state: paused; } #banner > ul > li { width: 18rem ; float: left; } #banner img{ width: 100%; /* background-size: 100%; */ } @keyframes imgMove { /*
    第一份照片和最后一张照片是同一张,两张照片的时间加起来要和其它照片的时间一样(10%+10%=20%),
    保证停顿的时间和显示的时间一致效果才好
  */ 0%,10% {margin-left: 0px;} 15%,35% {margin-left: -18rem;} 40%,60% {margin-left: -36rem;} 65%,85% {margin-left: -54rem;} 90%,100%{margin-left: -72rem;} }

 


 

 


 

 渐隐渐现效果

DOM

 

<div class="head-bg">
  <ul>
    <li><img class='head-bg-1' src="./images/header-banner-1.jpg" alt="首页"></li>
    <li><img class='head-bg-2' src="./images/header-banner-2.jpg" alt="首页"></li>
    <-- 赋值一份图片,再次轮播的时候不会闪烁 -->     <li><img class='head-bg-1' src="./images/header-banner-1.jpg" alt="首页"></li>   </ul> </div>

 

css

.head-bg {
  /*一屏宽,固定宽高溢出影藏*/ width: 1349px; height:
425.563px; overflow: hidden; } .head-bg>ul{
/*给脱离文档流的做参照物*/ position: relative; width:
100%; } /* 暂停动画 */ .head-bg>ul:hover{ animation-play-state: paused; } .head-bg > ul > li {
  /*脱离文档流,让两张图片叠在一起*/ position: absolute; width: 1349px ;
float: left; } .head-bg img{ width: 100%; } .head-bg-1{ animation: imgMove 10s linear infinite; } .head-bg-2{ animation: imgMove2 10s linear infinite; } @keyframes imgMove { 0% {opacity: 1;} 25% {opacity: 1;} 50% {opacity: 0;} 75% {opacity: 0;} } @keyframes imgMove2 { 0% {opacity: 0;} 25% {opacity: 0;} 50% {opacity: 1;} 75% {opacity: 1;} }

 

posted @ 2019-01-24 16:25  真的想不出来  阅读(1072)  评论(0编辑  收藏  举报