body { text-align: center; }
body { font-size: 100%; line-height: 100%; }
h1 { width: 100%; text-align: center; }
p, span, input[type="text"] { font-size: 1.4em; }
input[type="text"] { height: 1.4em; }
#exchange, #amount { width: 5em; }
span.btn { font-size: 1.4em; width: 80%; }
small, label { color: #999; font-size: 1.2em; }
strong#total { font-size: 2em; }
#logo { padding: 10px 0; }
	
div.container-fluid {
  width: 600px;
  margin-left: auto;
  margin-right: auto;
  text-align:left;
}