HTML 和 CSS 构建 1000px 宽 600px 高的轮播图

<div class='slideshow-container'>
  <div class='mySlides fade'>
    <img src='img1.jpg' style='width:100%'>
    <div class='text'>Caption Text</div>
  </div>
  <div class='mySlides fade'>
    <img src='img2.jpg' style='width:100%'>
    <div class='text'>Caption Text</div>
  </div>
  <div class='mySlides fade'>
    <img src='img3.jpg' style='width:100%'>
    <div class='text'>Caption Text</div>
  </div>
<p><a class='prev' onclick='plusSlides(-1)'>❮</a>
<a class='next' onclick='plusSlides(1)'>❯</a></p>
</div>
<br>
<div style='text-align:center'>
  <span class='dot' onclick='currentSlide(1)'></span> 
  <span class='dot' onclick='currentSlide(2)'></span> 
  <span class='dot' onclick='currentSlide(3)'></span> 
</div>
<style>
.slideshow-container {
  max-width: 1000px;
  height: 600px;
  position: relative;
  margin: auto;
}

.mySlides {
  display: none;
}

.prev,
.next {
  cursor: pointer;
  position: absolute;
  top: 50%;
  width: auto;
  padding: 16px;
  margin-top: -22px;
  color: white;
  font-weight: bold;
  font-size: 18px;
  transition: 0.6s ease;
  border-radius: 0 3px 3px 0;
}

.next {
  right: 0;
  border-radius: 3px 0 0 3px;
}

.prev:hover,
.next:hover {
  background-color: rgba(0, 0, 0, 0.8);
}

.text {
  color: #f2f2f2;
  font-size: 15px;
  padding: 8px 12px;
  position: absolute;
  bottom: 8px;
  width: 100%;
  text-align: center;
}

.dot {
  cursor: pointer;
  height: 15px;
  width: 15px;
  margin: 0 2px;
  background-color: #bbb;
  border-radius: 50%;
  display: inline-block;
  transition: background-color 0.6s ease;
}

.active,
.dot:hover {
  background-color: #717171;
}

.fade {
  -webkit-animation-name: fade;
  -webkit-animation-duration: 1.5s;
  animation-name: fade;
  animation-duration: 1.5s;
}

@-webkit-keyframes fade {
  from {
    opacity: .4
  }

  to {
    opacity: 1
  }
}

@keyframes fade {
  from {
    opacity: .4
  }

  to {
    opacity: 1
  }
}
</style>
<script>
var slideIndex = 1;
showSlides(slideIndex);

function plusSlides(n) {
  showSlides(slideIndex += n);
}

function currentSlide(n) {
  showSlides(slideIndex = n);
}

function showSlides(n) {
  var i;
  var slides = document.getElementsByClassName('mySlides');
  var dots = document.getElementsByClassName('dot');
  if (n > slides.length) {
    slideIndex = 1
  }
  if (n < 1) {
    slideIndex = slides.length
  }
  for (i = 0; i < slides.length; i++) {
    slides[i].style.display = 'none';
  }
  for (i = 0; i < dots.length; i++) {
    dots[i].className = dots[i].className.replace(' active', '');
  }
  slides[slideIndex - 1].style.display = 'block';
  dots[slideIndex - 1].className += ' active';
}
</script>