Question

我正在使用www.w3schools中的这个模态作为我为我的投资组合页面构建的模态的基础：http://www.w3schools.com/howto/tryit.asp?filename=tryhow_css_modal2

模式是显示一长串文字，展示我的项目。我现在遇到的模式问题是，当有多余信息时，它不会将滚动应用于模态。我尝试将CSS中的溢出更改为溢出 - 但是它有相同的结果，我尝试将模态的高度从100％调整到设置大小但是然后它破坏了模态的背景，甚至没有应用从溢出滚动。有谁知道如何解决这个问题？提前感谢任何能够帮助我的人。

jsfiddle：https://jsfiddle.net/5qv807b2/3/

HTML：

带页眉和页脚的动画模式

<!-- Trigger/Open The Modal -->
<button id="myBtn">Open Modal</button>

<!-- The Modal -->
<div id="myModal" class="modal">

  <!-- Modal content -->
  <div class="modal-content">
    <div class="modal-header">
      <span class="close">×</span>
      <h2>Modal Header</h2>
    </div>
    <div class="modal-body">
      <p>Some text in the Modal Body</p>
      <p>Some other text...</p>
      <p>Some text in the Modal Body</p>
      <p>Some other text...</p>
      <p>Some text in the Modal Body</p>
      <p>Some other text...</p>
      <p>Some text in the Modal Body</p>
      <p>Some other text...</p>
      <p>Some text in the Modal Body</p>
      <p>Some other text...</p>
      <p>Some text in the Modal Body</p>
      <p>Some other text...</p>
      <p>Some text in the Modal Body</p>
      <p>Some other text...</p>
      <p>Some text in the Modal Body</p>
      <p>Some other text...</p>
      <p>Some text in the Modal Body</p>
      <p>Some other text...</p>
      <p>Some text in the Modal Body</p>
      <p>Some other text...</p>
      <p>Some text in the Modal Body</p>
      <p>Some other text...</p>
      <p>Some text in the Modal Body</p>
      <p>Some other text...</p>
      <p>Some text in the Modal Body</p>
      <p>Some other text...</p>
      <p>Some text in the Modal Body</p>
      <p>Some other text...</p>
      <p>Some text in the Modal Body</p>
      <p>Some other text...</p>
      <p>Some text in the Modal Body</p>
      <p>Some other text...</p>
      <p>Some text in the Modal Body</p>
      <p>Some other text...</p>
      <p>END</p>
      <p>END</p>

    </div>
    <div class="modal-footer">
      <h3>Modal Footer</h3>
    </div>
  </div>

</div>

CSS：

/* The Modal (background) */
.modal {
    display: none; /* Hidden by default */
    position: fixed; /* Stay in place */
    z-index: 1; /* Sit on top */
    padding-top: 100px; /* Location of the box */
    left: 0;
    top: 0;
    width: 100%; /* Full width */
    height: 100%; /* Full height */
    overflow: auto; /* Enable scroll if needed */
    background-color: rgb(0,0,0); /* Fallback color */
    background-color: rgba(0,0,0,0.4); /* Black w/ opacity */
}

/* Modal Content */
.modal-content {
    position: relative;
    background-color: #fefefe;
    margin: auto;
    padding: 0;
    border: 1px solid #888;
    width: 80%;
    box-shadow: 0 4px 8px 0 rgba(0,0,0,0.2),0 6px 20px 0 rgba(0,0,0,0.19);
    -webkit-animation-name: animatetop;
    -webkit-animation-duration: 0.4s;
    animation-name: animatetop;
    animation-duration: 0.4s
}

/* Add Animation */
@-webkit-keyframes animatetop {
    from {top:-300px; opacity:0} 
    to {top:0; opacity:1}
}

@keyframes animatetop {
    from {top:-300px; opacity:0}
    to {top:0; opacity:1}
}

/* The Close Button */
.close {
    color: white;
    float: right;
    font-size: 28px;
    font-weight: bold;
}

.close:hover,
.close:focus {
    color: #000;
    text-decoration: none;
    cursor: pointer;
}

.modal-header {
    padding: 2px 16px;
    background-color: #5cb85c;
    color: white;
}

.modal-body {padding: 2px 16px;}

.modal-footer {
    padding: 2px 16px;
    background-color: #5cb85c;
    color: white;
}

脚本：

// Get the modal
var modal = document.getElementById('myModal');

// Get the button that opens the modal
var btn = document.getElementById("myBtn");

// Get the <span> element that closes the modal
var span = document.getElementsByClassName("close")[0];

// When the user clicks the button, open the modal 
btn.onclick = function() {
    modal.style.display = "block";
}

// When the user clicks on <span> (x), close the modal
span.onclick = function() {
    modal.style.display = "none";
}

// When the user clicks anywhere outside of the modal, close it
window.onclick = function(event) {
    if (event.target == modal) {
        modal.style.display = "none";
    }
}

Answer 1

您需要在.modal-body上设置以下css：

.modal-body {
  max-height: 50vh;  /* Change this value according to your needs */
  overflow: auto;
}

注意 ：请以完整页面模式查看演示。

// Get the modal
var modal = document.getElementById('myModal');

// Get the button that opens the modal
var btn = document.getElementById("myBtn");

// Get the <span> element that closes the modal
var span = document.getElementsByClassName("close")[0];

// When the user clicks the button, open the modal 
btn.onclick = function() {
    modal.style.display = "block";
}

// When the user clicks on <span> (x), close the modal
span.onclick = function() {
    modal.style.display = "none";
}

// When the user clicks anywhere outside of the modal, close it
window.onclick = function(event) {
    if (event.target == modal) {
        modal.style.display = "none";
    }
}

/* The Modal (background) */
.modal {
    display: none; /* Hidden by default */
    position: fixed; /* Stay in place */
    z-index: 1; /* Sit on top */
    padding-top: 40px; /* Location of the box */
    left: 0;
    top: 0;
    width: 100%; /* Full width */
    height: 100%; /* Full height */
    overflow: auto; /* Enable scroll if needed */
    background-color: rgb(0,0,0); /* Fallback color */
    background-color: rgba(0,0,0,0.4); /* Black w/ opacity */
}

/* Modal Content */
.modal-content {
    position: relative;
    background-color: #fefefe;
    margin: auto;
    padding: 0;
    border: 1px solid #888;
    width: 80%;
    box-shadow: 0 4px 8px 0 rgba(0,0,0,0.2),0 6px 20px 0 rgba(0,0,0,0.19);
    -webkit-animation-name: animatetop;
    -webkit-animation-duration: 0.4s;
    animation-name: animatetop;
    animation-duration: 0.4s
}

/* Add Animation */
@-webkit-keyframes animatetop {
    from {top:-300px; opacity:0} 
    to {top:0; opacity:1}
}

@keyframes animatetop {
    from {top:-300px; opacity:0}
    to {top:0; opacity:1}
}

/* The Close Button */
.close {
    color: white;
    float: right;
    font-size: 28px;
    font-weight: bold;
}

.close:hover,
.close:focus {
    color: #000;
    text-decoration: none;
    cursor: pointer;
}

.modal-header {
    padding: 2px 16px;
    background-color: #5cb85c;
    color: white;
}

.modal-body {
  padding: 2px 16px;
  max-height: 50vh;
  overflow: auto;
}

.modal-footer {
    padding: 2px 16px;
    background-color: #5cb85c;
    color: white;
}

<h2>Animated Modal with Header and Footer</h2>

<!-- Trigger/Open The Modal -->
<button id="myBtn">Open Modal</button>

<!-- The Modal -->
<div id="myModal" class="modal">

  <!-- Modal content -->
  <div class="modal-content">
    <div class="modal-header">
      <span class="close">×</span>
      <h2>Modal Header</h2>
    </div>
    <div class="modal-body">
      <p>Some text in the Modal Body</p>
      <p>Some other text...</p>
      <p>Some text in the Modal Body</p>
      <p>Some other text...</p>
      <p>Some text in the Modal Body</p>
      <p>Some other text...</p>
      <p>Some text in the Modal Body</p>
      <p>Some other text...</p>
      <p>Some text in the Modal Body</p>
      <p>Some other text...</p>
      <p>Some text in the Modal Body</p>
      <p>Some other text...</p>
      <p>Some text in the Modal Body</p>
      <p>Some other text...</p>
      <p>Some text in the Modal Body</p>
      <p>Some other text...</p>
      <p>Some text in the Modal Body</p>
      <p>Some other text...</p>
      <p>Some text in the Modal Body</p>
      <p>Some other text...</p>
      <p>Some text in the Modal Body</p>
      <p>Some other text...</p>
      <p>Some text in the Modal Body</p>
      <p>Some other text...</p>
      <p>Some text in the Modal Body</p>
      <p>Some other text...</p>
      <p>Some text in the Modal Body</p>
      <p>Some other text...</p>
      <p>Some text in the Modal Body</p>
      <p>Some other text...</p>
      <p>Some text in the Modal Body</p>
      <p>Some other text...</p>
      <p>Some text in the Modal Body</p>
      <p>Some other text...</p>
      <p>END</p>
      <p>END</p>

    </div>
    <div class="modal-footer">
      <h3>Modal Footer</h3>
    </div>
  </div>

</div>

模态滚动/溢出问题

带页眉和页脚的动画模式

1 个答案: