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<!DOCTYPE html>
<html>
<head>
<style> 
div.ex1 {
  margin: 20px;
  border: 1px solid black;
  background-color: yellow;
  outline: 4px solid red;
  outline-offset: 15px;
} 
div.ex2 {
  margin: 10px;
  border: 1px solid black;
  background-color: yellow;
  outline: 5px dashed blue;
  outline-offset: 5px;
} 
</style>
</head>
<body>
<h1>The outline-offset Property</h1>
<div class="ex1">This div has a 4 pixels solid red outline 15 pixels outside the border edge.</div>
<br>
<div class="ex2">This div has a 5 pixels dashed blue outline 5 pixels outside the border edge.</div>
</body>
</html>