Having trouble determining the height of a div element?

I'm struggling with a seemingly simple problem that I just can't seem to solve. I'm trying to get the height of my div element, but for some reason it keeps returning 0. Even when I inspect the element in Chrome, it shows me a height. Here's the code:

HTML

<div id="signup">
              <div class="panel">
              </div>
</div>

CSS:

.panel
{
  width: 90%;
  -webkit-border-radius: 10px;
  -moz-border-radius: 10px;
  -ms-border-radius: 10px;
  -o-border-radius: 10px;
  border-radius: 10px;
  background: #0071bc;
  padding: 1em;
  border: 0.3em solid;
  border-color: #073b73;
  color: #ffffff;
  position: relative;
  left:0;
  right: 0;
  margin: auto;

}

JQuery:

alert($("#signup .panel").outerHeight());
alert($("#signup .panel").height());

I've tried using these lines within both document ready and window load functions but keep getting a height of 0. What I have noticed is that if I specify a fixed height in the CSS like height:361px; or height:40%;, then I do get a value. However, I need the panel's height to adjust dynamically based on its contents. How do I retrieve this height once it's rendered? I'm truly stuck here, any help would be greatly appreciated.

jqueryhtmlcss

Answer №1

Explaining the Height Property:

We often encounter situations where the height property returns as "0" when there is no data present. This is because the height() function in jQuery calculates the height without taking padding and margin into consideration. Thus, if an element has no content (data), the height will be returned as 0.

Understanding outerHeight Functionality:

However, when using the outerHeight() function instead, a non-zero value may be displayed by Chrome. This discrepancy is due to the presence of padding and borders around the element. The outerHeight() function includes these values in its calculation, providing a more accurate representation of the element's total height. If you need to include padding, border, and margin in the height measurement, you can utilize outerHeight(true).

Additional Notes:

In cases where you require the height of an element with padding but without the border, utilizing innerHeight() would be appropriate. For measuring the total height including padding and margin without the border, make use of innerHeight(true).

For further details, refer to the Official Documentation:

Answer №2

The current code is operational, as demonstrated in this example. If you encounter any issues, the root of the problem likely lies elsewhere. Ensure that jQuery is properly linked and check for any errors in the console.

Here is the HTML from the example:

<div id="signup">
  <div class="panel">
    Lots of Content<br>
    Even More Content
  </div>
</div>

This is the jQuery used in the example:

$(document).ready(function(){
  console.log($("#signup .panel").height());
});

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