form {
max-width: 350px;
margin-left:auto;
margin-right:auto;
border=1px;
}

h3, p {
   max-width: 250px;
margin-left:auto;
margin-right:auto; 
border=1px;
}

body{
    
    background: snow;
}

fieldset{
    background: thistle;
     border-radius:8px 200px 8px 40px;
     box-shadow: 10px 10px 30px black;
}

#bouton {
	background:linear-gradient(to bottom, #dfbdfa 5%, #bc80ea 100%);

	background-color:#dfbdfa;
	border-radius:12px;
	border:3px solid #c584f3;
	display:inline-block;
	cursor:pointer;
	color:#000000;
	font-family:Arial;
	font-size:16px;
	padding:4px 13px;
	text-decoration:none;
}
#bouton:hover {
	
	background:linear-gradient(to bottom, #bc80ea 5%, #dfbdfa 100%);
	
}
#bouton:active {
	position:relative;
	top:1px;
}