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CSS jQuery Basics (2014) Creating a Simple Lightbox Perform: Part 4

Aaron Coursolle
Aaron Coursolle
18,014 Points

Why are no captions appearing?

Everything else in the lightbox appears to be working

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

//The $-sign before overlay in "var $overlay" doesn't actually do anything
//It is placed in front of the variable for convention sake:
var $overlay = $('<div id="overlay"></div>'); 
var $image = $("<img>");
var $caption = $("<p></p>");

//An image to overlay
$overlay.append($image);

//A caption to overlay
$overlay.append();

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


//Capture the click event on a link to an image
$("#imageGallery a").click(function(event){
    event.preventDefault();
    var imageLocation = $(this).attr("href");
//Update overlay with the image linked in the link
$image.attr("src", imageLocation);


  //Show the overlay
  $overlay.show();


  //Get child's alt attribute and set caption
  var captionText = $(this).children("img").attr("alt");
  $caption.text(captionText);
});

//When overlay is clicked
$overlay.click(function () {
  //Hide the overlay
  $overlay.hide();
});
/** Start Coding Here **/
#overlay {
  background:rgba(0,0,0,.7);
  width:100%;
  height:100%;
  position:absolute;
  top:0;
  left:0;
  display:none;
  text-align:center;
}

#overlay img {
  margin-top: 10%;
}

#overlay p {
  color:white;
}

1 Answer

On line 14, it seems that you aren't appending the $caption variable to your $overlay

It looks like that isn't in the video, so I can see why it is easily missed if you are trying to follow along.

Yixi Guan
Yixi Guan
7,927 Points

In teacher's code, there's another "$" is missing. I don't know if it was a mistake. Without the $ sign, my code wouldn't work.

$caption.text($captionText);

It's the one before captionText. Shouldn't it be required?