index.html

<html>
<head>
    <!--Load Jqueary and Moment-->
    <script type="text/javascript" src="jqueary.js"></script>
    <script type="text/javascript" src="moment.js"></script>
    <link type="text/css" href="main.css" rel="stylesheet">
    <script type="text/javascript">
        function compute(){
            var input, result;
            input = $("#textInput").val();
            $("#textInput").val("");
            result = (input*10);
            $("#ans").text(result);
        };

    </script>
</head>
<body>
<div class="center">
    <p class="center inline">How many mm in </p><input type="text" class="textbox" id="textInput"><p class="inline"> cm</p>

    <button type="button" class="button center block" onclick="compute()" value="Update">
        <p class="small">Update</p>
    </button>
    <p class="large center" id="ans"></p>


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