html, * {
    margin: 0;
    padding: 0;
	box-sizing:border-box;
}
*{
	margin:20px;
}

body {
	padding:10px;
	height:100vh;
	text-align: center;
	font-family: sans-serif;
	background:linear-gradient(to bottom,rgba(0,0,0,0.4),rgba(0,0,0,0.4)),url('https://i2.wp.com/asiatimes.com/wp-content/uploads/2017/11/iStock-610771930-e1511951512286.jpg?fit=1200%2C800&ssl=1');
	background-size:cover;
	background-repeat:no-repeat;
	color:#fff;
	font-size:20px;
	overflow-x:hidden;
}
h1{
	font-size:40px;
	font-weight:100;
	margin-top:-2px;
}
button,input,select{
	outline:none;
	border:none;
}

input {
	border-radius:15px;
	width: 150px;
	height: 30px;
	font-size: 18px;
    margin: 5px auto;
	width:300px;
	padding:15px;
}

button {
	background:#ff577f;
	color:#fff;
	width: 300px;
	height: 40px;
	font-size: 20px;
	margin:20px;
	cursor:pointer;
	border-radius:20px;
}

div.choose{
    margin:0 auto;
	width:60%;
	display:flex;
	justify-content:center;
}

select{
	font-size:15px;
	padding:7px 10px;
	border-radius:15px;
}
button:hover{
	filter:brightness(95%);
}
input#exchange-rate{
	color:#fff;
	text-align:center;
}
@keyframes grow{
	0%{transform:scale(1);}
	50%{transform:scale(1.2);}
	100%{transform:scale(1);}
}