I am wondering how to center these icons vertically within their button. I want them to be centered vertically regardless of what device they are displayed on. Thanks!
#footer {
position: fixed;
left: 0;
right: 0;
bottom: 0;
width: 100%;
text-align: center;
}
#footerbuttons {
height: 3vh;
border: none;
}<head>
<title>Mobile</title>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<!--jQuery CDN Hosted Files-->
<link rel="stylesheet" href="http://code.jquery.com/mobile/1.4.5/jquery.mobile-1.4.5.min.css" />
<script src="http://code.jquery.com/jquery-1.11.1.min.js"></script>
<script src="http://code.jquery.com/mobile/1.4.5/jquery.mobile-1.4.5.min.js"></script>
</head>
<!-- PAGE 1 ---------------------------->
<div data-role="page" id="school1">
<div data-role="footer" id="footer" data-position="fixed">
<div data-role="navbar">
<ul>
<li><a href="#" id="footerbuttons" data-icon="mail" data-iconpos="notext" data-role="button"></a></li>
<li><a href="#" id="footerbuttons" data-icon="camera" data-iconpos="notext" data-role="button"></a></li>
<li><a href="#" id="footerbuttons" data-icon="heart" data-iconpos="notext" data-role="button"></a></li>
</ul>
</div>
</div>
