Why is my JavaScript not properly updating the CSS styles of an element on my webpage?

Hi everyone,

I’m having trouble with my JavaScript code not updating the CSS styles of an element on my webpage. Here are the specifics:

  • HTML Structure: I have a <div> element with an ID of #myDiv that I want to style dynamically.
  • JavaScript Code: Here’s the relevant snippet:

javascript

Copy code

document.getElementById('myDiv').style.backgroundColor = 'blue';
  • Browser: I’m testing this in [insert browser name, e.g., Chrome, Firefox].
  • Issues: The background color does not change when I run the code. I’ve checked the console, and there are no error messages.

I’ve already tried:

  • Ensuring the JavaScript runs after the DOM has fully loaded by placing it at the end of the body tag.
  • Verifying that the ID matches correctly in the HTML.

What could be causing this issue? Any suggestions for troubleshooting or fixing it would be greatly appreciated!

Thanks!

Without the benefit of seeing your complete page code, I
can only suggest that this is what you need at a mininum…

<!DOCTYPE HTML>
<html lang="en">
<head>

<meta charset="utf-8">
<meta name="viewport" content="width=device-width,height=device-height,initial-scale=1">

<title>Untitled document</title>
</head>
<body>
  
<div id="myDiv">Test</div>

<script>
  document.getElementById('myDiv').style.backgroundColor = 'blue'; 
</script>

</body>
</html>

Most obvious thing i can think of is that a CSS rule somewhere else is overriding with the !important flag.

Without seeing the page, we’re going to be guessing somewhat.

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