Untitled

<!DOCTYPE html> 
<html> 
<head> 
<style> 
div { 
height: 100px; 
width: 100px; 
border-width:1px; 
border-style:solid; 
transition-property: height, width; 
transition-duration: 1s; 
transition-timing-function: linear; 
transition-delay:0s; 
} 

div:hover 
{ 
height: 200px; 
width: 200px; 
} 
</style> 
</head> 
<body> 
<div> 
<p> Hover over this div and wait to see the changes </p> 
</div> 
</body> 
</html>
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