On an inline-block element, a positive value in margin-top expands the height of the line and a negative value shrinks it. : Inline Elements : Box Model HTML CSS TUTORIALS

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On an inline-block element, a positive value in margin-top expands the height of the line and a negative value shrinks it.


 

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
  "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>
<style type="text/css">
.container{
    width: 800px;
    height: 800px;
    background: pink;
}
* .box {
  float: right;
  overflow: auto;
  visibility: visible;
  width: auto;
  height: 100px;
  margin: 10px;
  padding: 10px;
  background: red;
}

* .small {
    position: absolute;
    margin-top: 10%;
    background: yellow;  
}
</style>
</head>
<body>
  <div class="container"> 
        <img class="small" src="http://www.navioo.com/style/logo.png" alt="star"/>    
  </div> 
</body>
</html>