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JavaScript jQuery Basics (2014) Creating a Simple Lightbox Perform: Part 2

Christoph Walpert
Christoph Walpert
3,752 Points
Posted by Christoph Walpert
Christoph Walpert
3,752 Points

Overlay does not appear

Hi this is my workspace. Unfortunately I cant find my mistake.

//Problem: User when clicking on image goes to a dead end
// Solution: Create and overlay with large image - Lightbox

var $overlay = $('div id="overlay"></div>');
var $image = $("<img>");

$overlay.append($image);

$("body").append($overlay);

// 1. capture the click event on a link to an image
$("#imageGallery  a").click(function() {
  var imgLocation = $(this).attr("href");
    //1.2 update overlay with the image linked in the link
  $image.attr("src", imgLocation);

  $overlay.show();
  //1.1 show the overlay 
  //1.2 update overlay with the image linked in the link
  //1.3 Get child's alt attribute and set caption

// 2. Add an overlay
  //2.1 An image
  //2.2 A caption 

// 3. When overlay is clicked
  // 3.1 Hide overlay 
}); 

<!DOCTYPE html>
<html>
<head>
    <link rel="stylesheet" href="css/style.css" type="text/css" media="screen" title="no title" charset="utf-8">
    <title>Image Gallery</title>
</head>
<body>
    <h1>Image Gallery</h1>
    <ul id="imageGallery">
        <li><a href="images/refferal_machine.png"><img src="images/refferal_machine.png" width="100" alt="Refferal Machine By Matthew Spiel"></a></li>
        <li><a href="images/space-juice.png"><img src="images/space-juice.png" width="100" alt="Space Juice by Mat Helme"></a></li>
        <li><a href="images/education.png"><img src="images/education.png" width="100" alt="Education by Chris Michel"></a></li>
        <li><a href="images/copy_mcrepeatsalot.png"><img src="images/copy_mcrepeatsalot.png" width="100" alt="Wanted: Copy McRepeatsalot by Chris Michel"></a></li>
        <li><a href="images/sebastian.png"><img src="images/sebastian.png" width="100" alt="Sebastian by Mat Helme"></a></li>
        <li><a href="images/skill-polish.png"><img src="images/skill-polish.png" width="100" alt="Skill Polish by Chris Michel"></a></li>
        <li><a href="images/chuck.png"><img src="images/chuck.png" width="100" alt="Chuck by Mat Helme"></a></li>
        <li><a href="images/library.png"><img src="images/library.png" width="100" alt="Library by Tyson Rosage"></a></li>
        <li><a href="images/boat.png"><img src="images/boat.png" width="100" alt="Boat by Griffin Moore"></a></li>
        <li><a href="images/illustrator_foundations.png"><img src="images/illustrator_foundations.png" width="100" alt="Illustrator Foundations by Matthew Spiel"></a></li>
        <li><a href="images/treehouse_shop.jpg"><img src="images/treehouse_shop.jpg" width="100" alt="Treehouse Shop by Eric Smith"></a></li>
    </ul>
    <script src="http://code.jquery.com/jquery-1.11.0.min.js" type="text/javascript" charset="utf-8"></script>
    <script src="js/app.js" type="text/javascript" charset="utf-8"></script>

</body>
</html>

body {
    font-family: sans-serif;
    background: #384047;
}
h1 {
    color: #fff;
    text-align: center
}

ul {
    list-style:none;
    margin: 0 auto;
    padding: 0;
    display: block;
    max-width: 780px;
    text-align: center;
}
ul li {
    display: inline-block;
    padding: 8px;
    background:white;
    margin:10px;
}
ul li img {
    display: block;
}
a {
    text-decoration: none;
}
/** Start Coding Here **/

#overlay {
  background: rgba(0,0,0,0.7);
  max-width: 100%;
  max-height: 100%;
  position: absolute;
  top 0;
  left 0;
}
Christoph Walpert
Christoph Walpert
3,752 Points
Christoph Walpert
Christoph Walpert
3,752 Points

Why is my code not appearing formatted? that would be my next question? :D

2 Answers

Roberto Correale
Roberto Correale
1,539 Points
Roberto Correale
Roberto Correale
1,539 Points

You've missed the "<" at the begin of the div in overlay

var $overlay = $('<div id="overlay"></div>');

You also need to avoid browser to open image on click, by adding:

$("#imageGallery li a").click(function(e) {
    e.preventDefault();
Roberto Correale
Roberto Correale
1,539 Points
Roberto Correale
Roberto Correale
1,539 Points

you need to put (```) without brackets at the begin and at the end of the code. Please edit you first post and i will help you with your code