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Editorial Team
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Asked: 2026-05-23T01:34:51+00:00

I am new to developing web pages. I am looking to create menus similar

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I am new to developing web pages. I am looking to create menus similar to the ones in stackoverflow.com (like Questions, Tags, Users shown above). How do I change the color of the selected menu (for example, the background color of the Question changes to orange when ‘clicked’)?

I have managed to change the color while hovering (using CSS) as that was simple, but I am having trouble with this.

Can I achieve this effect of changing the color of a clicked item using only CSS?

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1 Answer

  1. Editorial Team

    Set the styles for class active and hover:

    Than you need to make the li active, on the server side.
    So when you are drawing the menu, you should know which page is loaded and set it to:

     <li class="active">Question</li>
 <li>Tags</li>
 <li>Users</li>

    But if you are changing the content without reloading, you cannot change set the active li element on the server, you need to use javascript:

    <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.5.2/jquery.min.js"></script>
<style>
  .menu{width: 300px; height: 25; font-size: 18px;}
  .menu li{list-style: none; float: left; margin-right: 4px; padding: 5px;}
  .menu li:hover, .menu li.active {
        background-color: #f90;
    }
</style>
</head>
<body>

<ul class="menu">
<li>Item 1</li>
<li class="active">Item 2</li>
<li>Item 3</li>
<li>Item 4</li>
<li>Item 5</li>
<li>Item 6</li>
</ul>

<script type="text/javascript">

var make_button_active = function()
{
  //Get item siblings
  var siblings =($(this).siblings());

  //Remove active class on all buttons
  siblings.each(function (index)
    {
      $(this).removeClass('active');
    }
  )


  //Add the clicked button class
  $(this).addClass('active');
}

//Attach events to menu
$(document).ready(
  function()
  {
    $(".menu li").click(make_button_active);
  }  
)

</script>
</body>

</html>
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