The following code shows how to add plus icon to button.
<!DOCTYPE html>
<html>
<head>
<link rel="stylesheet" type="text/css"
href="http://netdna.bootstrapcdn.com/font-awesome/3.2.1/css/font-awesome.min.css">
<style type='text/css'>
button.account {<!--from w w w . ja v a 2 s . com-->
display: block;
float: left;
height: 80px;
margin: 10px 10px;
padding: 10px 5px;
width: 170px;
}
.account h1 {
font-size: 16px;
height: 16px;
margin: 0 0 5px;
padding: 4px 0 2px;
}
.account .balance {
display: block;
font-size: 24px;
}
.account h1.plus {
font-size: 24px;
padding-top: 0px;
}
</style>
</head>
<body>
<div id="accounts">
<button class="account">
<h1>Price</h1>
<span class="balance">-123.45</span>
</button>
<button class="account">
<h1 class="plus">
<i class="icon icon-plus-sign"></i>
</h1>
<span class="plus-text">Add Account</span>
</button>
</div>
</body>
</html>