如何使用html在幻灯片上居中显示图像？（w3模板）_Html_Image_Slider_Centering

如何使用html在幻灯片上居中显示图像？（w3模板）

html image

如何使用html在幻灯片上居中显示图像？（w3模板）,html,image,slider,centering,Html,Image,Slider,Centering,我正在开发一个使用Html和Css的网站，我一直试图将图片集中在幻灯片中，我搜索了所有stack overflow和无数其他网站，但我仍然无法找到任何使用类似于我编写的代码的解决方案或答案 <title>W3.CSS</title> <meta name="viewport" content="width=device-width, initial-scale=1"> <link rel="stylesh

我正在开发一个使用Html和Css的网站，我一直试图将图片集中在幻灯片中，我搜索了所有stack overflow和无数其他网站，但我仍然无法找到任何使用类似于我编写的代码的解决方案或答案

<title>W3.CSS</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://www.w3schools.com/w3css/4/w3.css">
<style>
.mySlides {display:none;}
</style>
<body>


<div class="w3-content w3-display-container">
  <img class="mySlides" src="pancakes.jpeg" style="width: 75%">
  <img class="mySlides" src="acai.jpg" style="width: 75%">
  <img class="mySlides" src="avocado.jpg" style="width: 75%">
  

  <button class="w3-button w3-black w3-display-left" onclick="plusDivs(-1)">&#10094;</button>
  <button class="w3-button w3-black w3-display-right" onclick="plusDivs(1)">&#10095;</button>
</div>

<script>
var slideIndex = 1;
showDivs(slideIndex);

function plusDivs(n) {
  showDivs(slideIndex += n);
}

function showDivs(n) {
  var i;
  var x = document.getElementsByClassName("mySlides");
  if (n > x.length) {slideIndex = 1}
  if (n < 1) {slideIndex = x.length}
  for (i = 0; i < x.length; i++) {
    x[i].style.display = "none";  
  }
  x[slideIndex-1].style.display = "block";  
}
</script>

W3.CSS
.mySlides{display:none；}
❮
❯
var slideIndex=1；
showDivs（slideIndex）；
函数plusDivs（n）{
showDivs（slideIndex+=n）；
}
函数showDivs（n）{
var i；
var x=document.getElementsByClassName（“mySlides”）；
如果（n>x.length）{slideIndex=1}
如果（n<1）{slideIndex=x.length}
对于（i=0；i


试试这个
<title>W3.CSS</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://www.w3schools.com/w3css/4/w3.css">
<style>
.mySlides {display:none;margin:auto}
</style>
<body>


<div class="w3-content w3-display-container">
  <img class="mySlides" src="pancakes.jpeg">
  <img class="mySlides" src="acai.jpg">
  <img class="mySlides" src="avocado.jpg">
  

  <button class="w3-button w3-black w3-display-left" onclick="plusDivs(-1)">&#10094;</button>
  <button class="w3-button w3-black w3-display-right" onclick="plusDivs(1)">&#10095;</button>
</div>

<script>
var slideIndex = 1;
showDivs(slideIndex);

function plusDivs(n) {
  showDivs(slideIndex += n);
}

function showDivs(n) {
  var i;
  var x = document.getElementsByClassName("mySlides");
  if (n > x.length) {slideIndex = 1}
  if (n < 1) {slideIndex = x.length}
  for (i = 0; i < x.length; i++) {
    x[i].style.display = "none";  
  }
  x[slideIndex-1].style.display = "block";  
}
</script>

<title>W3.CSS</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://www.w3schools.com/w3css/4/w3.css">
<style>
.mySlides {display:none;}
</style>
<body>


<div class="w3-content w3-display-container">
  <img class="mySlides" src="pancakes.jpeg" style="max-width: inherit; max-height: inherit">
  <img class="mySlides" src="acai.jpg" style="max-width: inherit; max-height: inherit">
  <img class="mySlides" src="avocado.jpg" style="max-width: inherit; max-height: inherit">
  

  <button class="w3-button w3-black w3-display-left" onclick="plusDivs(-1)">&#10094;</button>
  <button class="w3-button w3-black w3-display-right" onclick="plusDivs(1)">&#10095;</button>
</div>

<script>
var slideIndex = 1;
showDivs(slideIndex);

function plusDivs(n) {
  showDivs(slideIndex += n);
}

function showDivs(n) {
  var i;
  var x = document.getElementsByClassName("mySlides");
  if (n > x.length) {slideIndex = 1}
  if (n < 1) {slideIndex = x.length}
  for (i = 0; i < x.length; i++) {
    x[i].style.display = "none";  
  }
  x[slideIndex-1].style.display = "block";  
}
</script> 

W3.CSS
.mySlides{display:none；margin:auto}
❮
❯
var slideIndex=1；
showDivs（slideIndex）；
函数plusDivs（n）{
showDivs（slideIndex+=n）；
}
函数showDivs（n）{
var i；
var x=document.getElementsByClassName（“mySlides”）；
如果（n>x.length）{slideIndex=1}
如果（n<1）{slideIndex=x.length}
对于（i=0；i

我已将margin:auto
添加到.mySlides
class&我已从img标签中删除width:75%
试试这个
<title>W3.CSS</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://www.w3schools.com/w3css/4/w3.css">
<style>
.mySlides {display:none;margin:auto}
</style>
<body>


<div class="w3-content w3-display-container">
  <img class="mySlides" src="pancakes.jpeg">
  <img class="mySlides" src="acai.jpg">
  <img class="mySlides" src="avocado.jpg">
  

  <button class="w3-button w3-black w3-display-left" onclick="plusDivs(-1)">&#10094;</button>
  <button class="w3-button w3-black w3-display-right" onclick="plusDivs(1)">&#10095;</button>
</div>

<script>
var slideIndex = 1;
showDivs(slideIndex);

function plusDivs(n) {
  showDivs(slideIndex += n);
}

function showDivs(n) {
  var i;
  var x = document.getElementsByClassName("mySlides");
  if (n > x.length) {slideIndex = 1}
  if (n < 1) {slideIndex = x.length}
  for (i = 0; i < x.length; i++) {
    x[i].style.display = "none";  
  }
  x[slideIndex-1].style.display = "block";  
}
</script>

<title>W3.CSS</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://www.w3schools.com/w3css/4/w3.css">
<style>
.mySlides {display:none;}
</style>
<body>


<div class="w3-content w3-display-container">
  <img class="mySlides" src="pancakes.jpeg" style="max-width: inherit; max-height: inherit">
  <img class="mySlides" src="acai.jpg" style="max-width: inherit; max-height: inherit">
  <img class="mySlides" src="avocado.jpg" style="max-width: inherit; max-height: inherit">
  

  <button class="w3-button w3-black w3-display-left" onclick="plusDivs(-1)">&#10094;</button>
  <button class="w3-button w3-black w3-display-right" onclick="plusDivs(1)">&#10095;</button>
</div>

<script>
var slideIndex = 1;
showDivs(slideIndex);

function plusDivs(n) {
  showDivs(slideIndex += n);
}

function showDivs(n) {
  var i;
  var x = document.getElementsByClassName("mySlides");
  if (n > x.length) {slideIndex = 1}
  if (n < 1) {slideIndex = x.length}
  for (i = 0; i < x.length; i++) {
    x[i].style.display = "none";  
  }
  x[slideIndex-1].style.display = "block";  
}
</script> 

W3.CSS
.mySlides{display:none；}
❮
❯
var slideIndex=1；
showDivs（slideIndex）；
函数plusDivs（n）{
showDivs（slideIndex+=n）；
}
函数showDivs（n）{
var i；
var x=document.getElementsByClassName（“mySlides”）；
如果（n>x.length）{slideIndex=1}
如果（n<1）{slideIndex=x.length}
对于（i=0；i

不要对图像标签应用特殊的宽度或高度，而是让您的img继承其容器，以便每个img都具有相同的大小并完全占据容器。
@JoodA。如果答案有用，请投票并接受