How to create: CSS/JS Modal
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Learn how to create modals using CSS and JavaScript.
How to create a modal
A modal is a dialog/popup window that appears at the top of the current page:
First Step - Add HTML:
<!-- Trigger/Open the modal -->
<button id="myBtn">Open Modal</button>
<!-- Modal -->
<div id="myModal" class="modal">
<!-- Modal content -->
<div class="modal-content">
<span class="close">×</span>
<p>Some text in the Modal..</p>
</div>
</div>
Second Step - Add CSS:
/* Modal (background) */
.modal {
display: none; /* Default hidden */
position: fixed; /* Keep position fixed */
z-index: 1; /* On top */
left: 0;
top: 0;
width: 100%; /* Full width */
height: 100%; /* Full height */
overflow: auto; /* Enable scrolling if needed */
background-color: rgb(0,0,0); /* Alternate color */
background-color: rgba(0,0,0,0.4); /* Semi-transparent black */
}
/* Modal content/container */
.modal-content {
background-color: #fefefe;
margin: 15% auto; /* 15% from the top and centered */
padding: 20px;
border: 1px solid #888;
width: 80%; /* May vary due to screen size */
}
/* Close button */
.close {
color: #aaa;
float: right;
font-size: 28px;
font-weight: bold;
}
.close:hover,
.close:focus {
color: black;
text-decoration: none;
cursor: pointer;
}
Step 3 - Add JavaScript:
// Get the modal
var modal = document.getElementById("myModal");
// Get the button to open the modal
var btn = document.getElementById("myBtn");
// Get the <span> element to close 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 the modal, close it
window.onclick = function(event) {
if (event.target == modal) {
modal.style.display = "none";
}
}
Add header and footer
Add classes for the modal header, body, and footer:
<!-- 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>
</div>
<div class="modal-footer">
<h3>Modal Footer</h3>
</div>
</div>
Set the styles for the modal header, body, and footer, and add animation (modal sliding in):
/* Modal header */
.modal-header {
padding: 2px 16px;
background-color: #5cb85c;
color: white;
}
/* Modal body */
.modal-body {padding: 2px 16px;}
/* Modal footer */
.modal-footer {
padding: 2px 16px;
background-color: #5cb85c;
color: white;
}
/* 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);
animation-name: animatetop;
animation-duration: 0.4s
}
/* Add animation */
@keyframes animatetop {
from {top: -300px; opacity: 0}
to {top: 0; opacity: 1}
}
Bottom Modal
Create a full-width modal that slides in from the bottom:
Example - Bottom Modal
Related Pages
Tutorial:How to Create Modal Image
Tutorial:How to Create Lightbox
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