jquery - position fixed header in html

Question

I have a header (dynamic height) with a fixed position.

I need to place the container div right below the header. As the header height is dynamic, I can't use the fixed value for top margin.

How can this be done?

Here's my CSS:

#header-wrap {
    position: fixed;
    height: auto;
    width: 100%;
    z-index: 100
}
#container{ 
    /*Need to write css to start this div below the fixed header without mentioning top margin/paading*/
}

...and HTML:

<div id="header-wrap">
  <div id="header">
    <div id="menu">
      <ul>
      <li><a href="#" class="active">test 0</a></li>
      <li><a href="#">Give Me <br />test</a></li>
      <li><a href="#">My <br />test 2</a></li>
      <li><a href="#">test 4</a></li> 
      </ul>
    </div>
    <div class="clear">
    </div>
  </div>
</div><!-- End of header -->

<div id="container">
</div>

Answer 1

Your #container should be outside of the #header-wrap, then specify a fixed height for #header-wrap, after, specify margin-top for #container equal to the #header-wrap's height. Something like this:

#header-wrap {
    position: fixed;
    height: 200px;
    top: 0;
    width: 100%;
    z-index: 100;
}
#container{ 
    margin-top: 200px;
}

Hope this is what you need: http://jsfiddle.net/KTgrS/