Boxmodel in CSS

INPUT

<html>
<head><title>Boxmodel</title>
<style>

p{
background-color:#ff0d55;
color:green;
/*margin-top:100px;
margin-right:100px;
margin-left:100px;
margin-bottom:100px;
*/
margin:100px 100px 100px 100px;
padding:50px;
border:10px dashed green;
border-radius:100px;

}
</style>
</head>
<body>

<p>
MY NAME IS ARIN BANSAL,
thanks to see it.
</p>
</body>
</html>

</html>