html div horizontal
<html>
<title>
Website Title
</title>
<div id="the whole thing" style="height:100%; width:100%" >
<div id="leftThing" style="position: relative; width:25%; background-color:blue;">
Left Side Menu
</div>
<div id="content" style="position: relative; width:50%; background-color:green;">
Random Content
</div>
<div id="rightThing" style="position: relative; width:25%; background-color:yellow;">
Right Side Menu
</div>
</div>
</html>