To rank slightly better in the search engines, one thing you can do is to optimize the source code of your webpages in such a way that your most important keyword focused content is placed as high as possible inside the source code.
If your website layout uses a sidebar on the left, you will usually find the content of this sidebar above the main content inside the source code. Here is where the HTML table trick comes into play. Let´s take a look at a very simple example.

The scratch on the left shows you a simple website layout with a header box, a left sidebar (menu) box, the main content box and finally a footer box, designed purely in CSS.
In the two boxes below, you see the CSS stylesheet and the relevant part of the HTML source code which both together form this website layout. As you can easily see in the source code, the sidebar content comes first and the more important keyword focused main content of the page is moved downwards.
Stylesheet (styles.css)
#wrapper {
width: 700px;
margin: 0 auto;
border: 2px solid #369;
}
#header {
width: 100%;
border-bottom: 1px solid #369;
margin: 0;
padding: 0;
}
#menu {
width: 200px;
float: left;
border-right: 1px solid #369;
margin: 0;
padding: 5px;
}
#content {
width: 500px;
border: none;
margin: 0;
padding: 5px;
}
#footer {
width: 100%;
border-top: 1px solid #369;
margin: 0;
padding: 5px;
}
HTML source code
<hmtl>
<title>webpage title</title>
<link rel="stylesheet" type="text/css" href="styles.css">
<body>
<div id="wrapper">
<div id="header">
Your Website Header Goes Here.
</div>
<div id="menu">
This is the sidebar ( menu ) of your webpage. As you can see, it comes before the main content inside the source code of your webpage. And this could be quite a lof of stuff if you have many links and ads in your sidebar.
</div>
<div id="content">
This is the box for the main content of your webpage, starting with the H1 heading.
</div>
<div id="footer">
Your Website Footer Goes Here.
</div>
</div>
</body>
&l6;/html>

In order to move the main content above the left sidebar inside the source code, you can use the following layout trick using a HTML table with two rows and two columns like illustrated in the scratch on the left.
The first table cell in the first table row has the same width as the sidebar but it remains empty, so it´s only a few pixels in height and can´t be seen by your visitors. The second table cell in the first row spans over two rows and forms the largest box which contains your main content.
Only in the second row, you will find the sidebar content inside the first table cell. Take a look at the source code below and you will see how the main content is moved towards the top while the visible layout remains almost the same.
Stylesheet (styles.css)
#wrapper {
width: 98%;
margin: 0 auto;
border: 2px solid #369;
}
#header {
width: 100%;
border-bottom: 1px solid #369;
margin: 0;
padding: 0;
}
#table {
width: 100%;
border-collapse: collapse;
border: none;
}
#empty {
width; 200px;
border-right: 1px solid #369;
margin: 0;
padding: 0;
}
#menu {
width: 200px;
border-right: 1px solid #369;
margin: 0;
padding: 5px;
vertical-align: top;
}
#content {
width: 500px;
border: none;
margin: 0;
padding: 5px;
vertical-align: top;
}
#footer {
width: 100%;
border-top: 1px solid #369;
margin: 0;
padding: 5px;
}
HTML source code
<hmtl>
<title>webpage title</title>
<link rel="stylesheet" type="text/css" href="styles.css">
<body>
<div id="wrapper">
<div id="header">
Your Website Header Goes Here.
</div>
<table id="table">
<tr>
<td id="empty"></td>
<td colspan="2" id="content">
This is the second table data cell in the first row and contains the main content of your webpage. Notice how it spans two rows and inside the source code, it now stands above the sidebar content.
</td>
</tr>
<tr>
<td id="menu">
That´s the table data cell which contains the sidebar (menu) content.
</td>
</tr>
</table>
<div id="footer">
Your Website Footer Goes Here.
</div>
</div>
</body>
</html>
Feel free to copy the codes from the boxes above, experiment with them and modify and use them for your websites. Get my HTML video tutorial if you want to learn html with ease.