<!DOCTYPE HTML>
<html>
<head>
<title>Untitled</title>
<style type="text/css">
input:checked + label {
display: inline-block;
}
label{
display: none;
}
</style>
</head>
<body>
<input type="radio" name="r1" id="r1" class="r1" checked="checked"><label for="r1">#-1</label><br>
<input type="radio" name="r1" id="r2" class="r1"><label for="r2">#-2</label><br>
<input type="radio" name="r1" id="r3" class="r1"><label for="r3">#-3</label><br>
<input type="radio" name="r1" id="r4" class="r1"><label for="r4">#-4</label><br>
</body>
</html>