Edit in JSFiddle

<!DOCTYPE html>
<html>
<head>
<title>HTML’de Div Kullanımı</title>
<style type="text/css"> <!–
#main {
width:250px;
height:200px;
background-color:#ccc;
padding:5px;
}
div.bolum {
width:150px;
height:100px;
background-color:red;
padding:5px;
}
–> </style>
</head>
<body>
<div id="main">
Dıştaki Ana Div
<div class="bolum">
İçteki Div <br />
ilkteknoloji.com
</div>
</div>
</body>
</html>