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css

body,
html,
.seq {

  /* #1 */
  width: 100%;
  height: 100%;

  /* #2 */
  margin: 0;
  padding: 0;
}
 
.seq {

  /* #1 */
  position: relative; 
  overflow: hidden; 
  font-family: sans-serif;
  color: white;
  text-align: center; 
  background-color: #2A93BC; 
  transition-duration: .5s;
  transition-property: background-color;
}
 
.seq-canvas,
.seq-canvas > * {

  /* #1 */
  height: 100%;
  width: 100%;

  /* #2 */
  margin: 0;
  padding: 0;
  list-style: none;
}

 
.seq-canvas > * {
  /* #1 */
  position: absolute;

  /* #2 */
  padding: 32px;
  box-sizing: border-box;

  /* #3 */
  height: auto;
  top: 0;
  bottom: 80px;
}

.seq-step1 {
  background-color: #102334; 
}

.seq-step2 {
  background-color:#1f1f1f;
}

.seq-step3 {
  background-color: #561295;
}

.feature {
  width: 70%;
  max-width: 100%;
  height: auto;
}

@media only screen and (min-width: 460px) and (min-height: 520px) {
  .feature {
    width: 100%;
  }
}


/* Ghost element */
.valign:before {
  content: "";
  height: 100%;
}

/* Vertically align the ghost and desired elements */
.valign:before,
.valign > .vcenter {
  display: inline-block;
  vertical-align: middle;
}

/* Remove 4px gap to allow consistent valign */
.valign {
  font-size: 0;
}

/* Reset font-size on valigned elements */
.valign > .vcenter {
  font-size: 16px;
}
 
.title {
  /* #1 */
  margin: 0;

  /* #2 */
  opacity: 0;
  transform: translateX(50px) translateZ(0);

  /* #3 */
  transition-duration: .5s;
  transition-property: opacity, transform;
}

/*
 * When a step is active, fade in to opaque and slide to the center
 */
.seq-in .title {
  opacity: 1;
  transform: translateX(0) translateZ(0);
}
 
.seq-out .title {
  opacity: 0;
  transform: translateX(-50px) translateZ(0);
}

 
.feature {
  transform: translateZ(0) scale(0);
  transition-duration: .5s;
  transition-property: transform, opacity;
}

 
.seq-in .feature {
  transform: translateZ(0) scale(1);
}
 
.seq-out .feature {
  transform: translateZ(0) scale(1);
  opacity: 0;
}
 
.nav {
  /* #1 */
  position: absolute;
  z-index: 100;
  left: 0;
  right: 0;
  bottom: 2.5em;
  max-width: 640px;
  width: 100%;
 
  border: none;
  margin: 0 auto;
  padding: 0;
}

 
.seq-next,
.seq-prev {
  /* #1 */
  padding: 0;
  background: transparent;
  border: none;

  /* #2 */
  padding: .75em;
  cursor: pointer;
  color: white;
  font-size: .75em;
  text-transform: uppercase;

  /* #3 */
  opacity: .7;
  transition-duration: .25s;
  transition-property: opacity;
}

.seq-next:hover,
.seq-prev:hover {
  opacity: 1;
}
 
.seq-next,
.seq-prev,
.seq-pagination {
  position: relative;
  display: inline-block;
  vertical-align: middle;
  margin-top: 0;
}
 
.seq-pagination {
  margin: 0 1em;
  padding: 0;
}
 
.seq-pagination li {
  /* #1 */
  position: relative;

  /* #2 */
  list-style: none;

  /* #3 */
  display: inline-block;
  vertical-align: middle;

  /* #4 */
  width: 50px;
  height: 40px;
  margin: 0 .25em;
}
 
.seq-pagination li:before {
  /* #1 */
  content: "";
  display: block;
  position: absolute;
  top: 100%;
  left: 50%;
  width: 6px;
  height: 6px;
  margin-left: -3px;
  margin-top: .5em;
  border-radius: 50%;
  background: white;

  /* #2 */
  opacity: 0;
  transition-duration: .25s;
  transition-property: opacity;
}

/*
 * Show the indicator dot for the current link
 */
.seq-pagination .seq-current:before {
  opacity: .7;
}

/*
 * Reset styles
 */
.seq-pagination img,
.seq-pagination a {
  display: block;
  border: none;
}

html

 <!DOCTYPE html>
 <html lang="en">
 <head>
     <meta charset="UTF-8">
     <title>Document</title>
      <link rel="stylesheet" href="main.css">
 </head>
 <body>
     <div id="sequence" class="seq">
    <ul class="seq-canvas">
      <li class="step1 valign seq-in">
        <div class="vcenter">
          <img data-seq class="feature" src="bmw.png" width="389" height="300" />
          <h2 data-seq class="title">BMW Nova</h2>
        </div>
      </li>
      <li class="step2 valign">
        <div class="vcenter">
          <img data-seq class="feature" src="bmw1.png" width="325" height="300" />
          <h2 data-seq class="title">Blue Bmw</h2>
        </div>
      </li>
      <li class="step3 valign">
        <div class="vcenter">
          <img data-seq class="feature" src="bmw2.png" width="325" height="300" />
          <h2 data-seq class="title">Coming up</h2>
        </div>
      </li>
    </ul>

    <fieldset class="nav" aria-label="Slider buttons" aria-controls="sequence">

      <button type="button" class="seq-prev" aria-label="Previous"><img src="prev.svg" alt="Previous" /></button>

      <ul role="navigation" aria-label="Pagination" class="seq-pagination">
        <li class="seq-current">
          <a href="#step1" rel="step1" title="Go to bananas">
            <img src="bmw.png" alt="Bananas" width="50" height="40" />
          </a>
        </li>
        <li>
          <a href="#step2" rel="step2" title="Go to coconut">
            <img src="bmw1.png" alt="Coconut" width="50" height="40" />
          </a>
        </li>
        <li>
          <a href="#step3" rel="step3" title="Go to orange">
            <img src="bmw2.png" alt="Orange" width="50" height="40" />
          </a>
        </li>
      </ul>

      <button type="button" class="seq-next" aria-label="Next"><img src="next.svg" alt="Next" /></button>
    </fieldset>

  </div>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery.imagesloaded/4.1.4/imagesloaded.min.js"></script>
  
  <script src="https://cdnjs.cloudflare.com/ajax/libs/hammer.js/2.0.8/hammer.min.js"></script>
  
  <script src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/154/sequence.min.2.1.0.js"></script>
  <script>
     var sequenceElement = document.getElementById("sequence");

var options = {
  keyNavigation: true,
  animateCanvas: false,
  phaseThreshold: false,
  reverseWhenNavigatingBackwards: true
}

var mySequence = sequence(sequenceElement, options);
     
    </script>
 </body>
 </html>

在线演示? 让链接同时具备两种打开方式