How to create responsive Modal Images with CSS and JavaScript?

CSSWeb DevelopmentFront End TechnologyJavascript

Following is the code to create responsive modal images using CSS and JavaScript −


 Live Demo

<!DOCTYPE html>
<meta name="viewport" content="width=device-width, initial-scale=1">
   box-sizing: border-box;
   text-align: center;
.ImgThumbnail {
   margin-left: 38%;
   border-radius: 5px;
   cursor: pointer;
   transition: 0.3s;
   height: 250px;
   width: 250px;
.modal {
   display: none;
   position: fixed;
   z-index: 1;
   padding-top: 100px;
   left: 0;
   top: 0;
   width: 100%;
   height: 100%;
   overflow: auto;
   background-color: rgb(0,0,0);
   background-color: rgba(0,0,0,0.9);
.modalImage {
   margin: auto;
   display: block;
   width: 50%;
   height: 60%;
   max-width: 700px;
#caption {
   margin: auto;
   display: block;
   width: 80%;
   max-width: 700px;
   text-align: center;
   color: #ccc;
   padding: 10px 0;
   height: 150px;
.close {
   position: absolute;
   top: 15px;
   right: 35px;
   color: #f1f1f1;
   font-size: 40px;
   font-weight: bold;
   transition: 0.3s;
.close:focus {
   color: rgb(255, 0, 0);
   cursor: pointer;
@media only screen and (max-width: 700px){
   .modalImage {
      width: 100%;
<h1>Image Modal Example</h1>
<img class="ImgThumbnail" src=""
   alt="Snow" style="width:100%;max-width:300px">
<div class="modal">
<span class="close">×</span>
<img class="modalImage" id="img01">
<div id="caption">mage 1</div>
var modalEle = document.querySelector(".modal");
var modalImage = document.querySelector(".modalImage");
let wow;
document.querySelector('.ImgThumbnail').addEventListener('click',(event)=>{ = "block";
   modalImage.src =;
document.querySelector(".close").addEventListener('click',()=>{ = "none";


The above code will produce the following output −

On clicking the Image the modal will open as follows −

Published on 06-Apr-2020 15:34:26