I have set code but icons are not seen. Why is this?
PHP Code:

<!DOCTYPE html>
<
html>
<
head>
<
meta charset="utf-8">
<
meta name="viewport" content="width=device-width, initial-scale=1">
<
link href="http://code.jquery.com/mobile/latest/jquery.mobile.min.css" rel="stylesheet" type="text/css" />
<
link rel="stylesheet" href="css/styles1.css" type="text/css" />
<
script src="http://code.jquery.com/jquery-1.10.2.min.js"></script>
<script src="http://code.jquery.com/mobile/latest/jquery.mobile.min.js"></script>
</head>
<body>
<div data-role="page">

<br /><br /><br /><br /><br />
<div class="row-of-icons">
<a class="icon-alone" href="#Email"><span data-icon="phone" aria-hidden="true"></span><!--<span>E-mail</span>--></a>
<a class="icon-alone" href="#Phone"><span data-icon="email" aria-hidden="true"></span><!--<span>Phone</span>--></a>
</div>


</div>
</body>
</html>

CSS:
.ui-icon-phone:after {
background-image: url("..(images/iphone_16x16.png");
background-size: 18px 18px;
}
.ui-icon-mail:after {
background-image: url("..(images/mail_16x16.png");
background-size: 18px 18px;
}
[data-icon]:before {
font-family: icons;
content: attr(data-icon);
speak: none;
}
.icon-alone {
display: inline-block;
}
.icon-block {
display: block;
}
.ui-body-c .ui-link, .ui-body-c .ui-link:hover {
color: #00FF00;
text-decoration: none;
font-size: 2.5em;