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如何解決關(guān)閉HTML和CSS中的lightbox模態(tài)窗口的問題？

CSS
榮姿康2年前8瀏覽0評論

我剛剛創(chuàng)建了一個lightbox模型來顯示圖像。單擊圖像時，會出現(xiàn)一個帶有導(dǎo)航按鈕的模式窗口，用于在圖像之間切換。但是，目前通過點(diǎn)擊空白區(qū)域來關(guān)閉模態(tài)窗口存在一個問題。似乎元素的z索引值導(dǎo)致了沖突，盡管我試圖給它們分配不同的值。我將非常感謝你的幫助來解決這個問題。謝謝你。

<style>
/* Mobile Styles */
  @media (max-width: 767px){
    .mySlides img {
      width: 100%;
    }
  }
  
  /* Desktop Styles */
  @media (min-width: 768px) {
    .mySlides img {
      width: 70%;
    }
}
.mySlides img{margin: 0 auto;
position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  max-width: 100%;
  max-height: 100%;}
.mySlides{height: 100vh;}
  
.background-image {
  position: fixed;
z-index: auto;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-attachment: fixed;
  cursor: pointer;
}
* {
  box-sizing: border-box;
}

.row > .column {
  padding: 0 8px;
}

.row:after {
  content: "";
  display: table;
  clear: both;
}

.column {
  float: left;
  width: 25%;
}

/* The Modal (background) */
.modal {
  display: none;
  position: fixed;
  z-index: auto;
  padding-top: 10px;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  /* overflow: auto; */
  background-color: black;
}

/* Modal Content */
.modal-content {
  position: relative;
  /*background-color: #fefefe;*/
  margin: auto;
  padding: 0;
  width: 100%;
  /* max-width: 1200px; */
}

/* The Close Button */
.close {
  color: white;
  position: absolute;
  top: 10px;
  right: 25px;
  font-size: 35px;
  font-weight: bold;
}

.close:hover,
.close:focus {
  color: #999;
  text-decoration: none;
  cursor: pointer;
}

.mySlides {
  display: none;
text-align: center; /* Center the image within the container */
}

.cursor {
  cursor: pointer;
}

/* Next & previous buttons */
.prev,
.next {
  cursor: pointer;
  position: absolute;
  top: 50%;
  width: auto;
  padding: 16px;
  margin-top: -50px;
  color: white;
  font-weight: bold;
  font-size: 20px;
  transition: 0.6s ease;
  border-radius: 0 3px 3px 0;
  user-select: none;
  -webkit-user-select: none;
z-index: auto;
}

/* Position the "next button" to the right */
.next {
  right: 0;
  border-radius: 3px 0 0 3px;
}

/* On hover, add a black background color with a little bit see-through */
.prev:hover,
.next:hover {
  background-color: rgba(0, 0, 0, 0.8);
}

img {
  margin-bottom: -4px;
}
.demo {
  opacity: 0.6;
}

.active,
.demo:hover {
  opacity: 1;
}

img.hover-shadow {
  transition: 0.3s;
}

.hover-shadow:hover {
  box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19);
}
.grid { 
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-gap: 20px;
  align-items: stretch;
  justify-items: center;
padding: 20px;
  }
.grid img {
  box-shadow: 2px 2px 6px 0px  rgba(0,0,0,0.3);
  max-width: 100%;
}
</style>

<div  class="parent-cont">
<main class="grid">
  <img onclick="openModal();currentSlide(1)" src="https://only4gamers.net/wp-content/uploads/2023/05/New-2.png" alt="Sample photo">
  <img onclick="openModal();currentSlide(2)" src="https://only4gamers.net/wp-content/uploads/2023/05/New-3.png" alt="Sample photo">
  <img onclick="openModal();currentSlide(3)" src="https://only4gamers.net/wp-content/uploads/2023/05/New-13.png" alt="Sample photo">
  <img onclick="openModal();currentSlide(4)" src="https://only4gamers.net/wp-content/uploads/2023/05/New-12.png" alt="Sample photo">
</main>



</div>
</div>

<div id="myModal" class="modal">
  <img src="https://only4gamers.net/wp-content/uploads/2023/05/Transparent-1-pixel.png" class="background-image" onclick="closeModal()">
  <div class="modal-content">

    <div class="mySlides">
      <img style="z-index: auto;" src="https://only4gamers.net/wp-content/uploads/2023/05/New-2.png">
    </div>

    <div class="mySlides">
      <img style="z-index: auto;" src="https://only4gamers.net/wp-content/uploads/2023/05/New-3.png">
    </div>

    <div class="mySlides">
      <img style="z-index: auto;" src="https://only4gamers.net/wp-content/uploads/2023/05/New-13.png">
    </div>
    
    <div class="mySlides">
      <img style="z-index: auto;" src="https://only4gamers.net/wp-content/uploads/2023/05/New-12.png">
    </div>
    
    <a class="prev" onclick="plusSlides(-1)">&#10094;</a>
    <a class="next" onclick="plusSlides(1)">&#10095;</a>
  </div>
</div>

https://codepen.io/Only4Gamers/pen/PoyXojW

帶有事件處理程序onclick = & quotcloseModal()& quot；位于modal上顯示的圖像之后(指包含在& ltdiv class = & quot模態(tài)內(nèi)容& quot& gt因?yàn)閮煞鶊D像的z索引都設(shè)置為自動。如果具有相同z-index值的兩個元素相互重疊，那么代碼中后面出現(xiàn)的元素將被放在最上面。

Fix:設(shè)置z-index:1；在背景圖片CSS類將修復(fù)這個問題。

雖然你所報告的問題將會通過上述修改得到解決，但是當(dāng)點(diǎn)擊顯示在模態(tài)界面上的圖像時，它也會導(dǎo)致模態(tài)界面關(guān)閉。發(fā)生這種情況的原因是，用戶會在不知情的情況下點(diǎn)擊附加了closeModal事件處理程序的透明圖像，并且該透明圖像位于整個模式內(nèi)容的頂部。

更好的設(shè)計是在div上附加closeModal事件處理程序，使用class = & quot模態(tài)內(nèi)容& quot并在單擊模式或?qū)Ш桨粹o上顯示的圖像時取消單擊事件。

進(jìn)行以下所有更改:

超文本標(biāo)記語言

<div  id="parent-cont">
<main class="grid">
  <img onclick="openModal();currentSlide(1)" src="http://only4gamers.net/wp-content/uploads/2023/05/New-2.png" alt="Sample photo">
  <img onclick="openModal();currentSlide(2)" src="http://only4gamers.net/wp-content/uploads/2023/05/New-3.png" alt="Sample photo">
  <img onclick="openModal();currentSlide(3)" src="http://only4gamers.net/wp-content/uploads/2023/05/New-13.png" alt="Sample photo">
  <img onclick="openModal();currentSlide(4)" src="http://only4gamers.net/wp-content/uploads/2023/05/New-12.png" alt="Sample photo">
</main>
</div>

<div id="myModal" class="modal">
  <div class="modal-content" onclick="closeModal()">

    <div class="mySlides" onclick="cancelEvent(event)">
      <img src="http://only4gamers.net/wp-content/uploads/2023/05/New-2.png">
    </div>

    <div class="mySlides" onclick="cancelEvent(event)">
      <img src="http://only4gamers.net/wp-content/uploads/2023/05/New-3.png">
    </div>

    <div class="mySlides" onclick="cancelEvent(event)">
      <img src="http://only4gamers.net/wp-content/uploads/2023/05/New-13.png">
    </div>
    
    <div class="mySlides" onclick="cancelEvent(event)">
      <img src="http://only4gamers.net/wp-content/uploads/2023/05/New-12.png">
    </div>
    
    <a class="prev" onclick="plusSlides(-1, event)">&#10094;</a>
    <a class="next" onclick="plusSlides(1, event)">&#10095;</a>
  </div>
</div>

半鑄鋼?鋼性鑄鐵(Cast Semi-Steel)

/* Mobile Styles */
  @media (max-width: 767px){
    .mySlides img {
      width: 100%;
    }
  }
  
  /* Desktop Styles */
  @media (min-width: 768px) {
    .mySlides img {
      width: 70%;
    }
}
.mySlides img{margin: 0 auto;
position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  max-width: 100%;
  max-height: 100%;}
.mySlides{
  height: 100vh;
  width: 70%;
  margin: auto;
}
  
* {
  box-sizing: border-box;
}

.row > .column {
  padding: 0 8px;
}

.row:after {
  content: "";
  display: table;
  clear: both;
}

.column {
  float: left;
  width: 25%;
}

/* The Modal (background) */
.modal {
  display: none;
  position: fixed;
  z-index: auto;
  padding-top: 10px;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  /* overflow: auto; */
  background-color: black;
}

/* Modal Content */
.modal-content {
  position: relative;
  /*background-color: #fefefe;*/
  margin: auto;
  padding: 0;
  width: 100%;
  /* max-width: 1200px; */
}

/* The Close Button */
.close {
  color: white;
  position: absolute;
  top: 10px;
  right: 25px;
  font-size: 35px;
  font-weight: bold;
}

.close:hover,
.close:focus {
  color: #999;
  text-decoration: none;
  cursor: pointer;
}

.mySlides {
  display: none;
text-align: center; /* Center the image within the container */
}

.cursor {
  cursor: pointer;
}

/* Next & previous buttons */
.prev,
.next {
  cursor: pointer;
  position: absolute;
  top: 50%;
  width: auto;
  padding: 16px;
  margin-top: -50px;
  color: white;
  font-weight: bold;
  font-size: 20px;
  transition: 0.6s ease;
  border-radius: 0 3px 3px 0;
  user-select: none;
  -webkit-user-select: none;
z-index: auto;
}

/* Position the "next button" to the right */
.next {
  right: 0;
  border-radius: 3px 0 0 3px;
}

/* On hover, add a black background color with a little bit see-through */
.prev:hover,
.next:hover {
  background-color: rgba(0, 0, 0, 0.8);
}

img {
  margin-bottom: -4px;
}
.demo {
  opacity: 0.6;
}

.active,
.demo:hover {
  opacity: 1;
}

img.hover-shadow {
  transition: 0.3s;
}

.hover-shadow:hover {
  box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19);
}
.grid { 
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-gap: 20px;
  align-items: stretch;
  justify-items: center;
padding: 20px;
  }
.grid img {
  box-shadow: 2px 2px 6px 0px  rgba(0,0,0,0.3);
  max-width: 100%;
}

射流研究…

function openModal() {
  document.getElementById("myModal").style.display = "block";
  document.getElementById("parent-cont").style.display = "none";
}

function closeModal() {
  document.getElementById("myModal").style.display = "none";
  document.getElementById("parent-cont").style.display = "block";
}

function cancelEvent(event) {
  event.stopPropagation();
}

var slideIndex = 1;
showSlides(slideIndex);

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

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

function showSlides(n) {
  var i;
  var slides = document.getElementsByClassName("mySlides");
  var dots = document.getElementsByClassName("demo");

  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";
}