index.html

<!DOCTYPE html>
<html>
<head>
    <meta http-equiv="content-type" content="text/html; charset=utf-8"/>
    <title>test</title>
    <!--<link rel="stylesheet" href="reset.css"/>-->
    <link rel="stylesheet" href="index.css"/>
    <script type="text/javascript" src="index.js"></script>
</head>
    <body>
    <div class="wrapper">
        <div class="show">
            <h1>Вычисление мат. выражения с использованием ОПН</h1>
            <div class="in">
                <span>Enter expression</span>
                <input id="in" type="text" readonly/>
            </div>
            <div class="out">
                <span>The converted string</span>
                <input id="out" type="text" placeholder="with shunting-yard algorithm" readonly/>
                <span>Result of the calculation</span>
                <input id="calc" type="text" readonly/>
            </div>
        </div>
    </div>
    </body>
</html>