I’m designing a new website and I have come across a problem. The way I want my navigation bar to work is that it blends into the header (logo bar).
Here is what it currently looks like when coded:

Here is what I want it to look like:

Currently this is my CSS:
#header {
margin: 0px auto;
width: 900px;
height: 170px;
background: #000;
}
#navigation {
margin: 0px auto;
width: 920px;
height: 60px;
background: url('images/nav.png');
}
And my HTML:
<div id="header">
</div>
<div id="navigation">
</div>
you can write like this: