Untitled

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
    <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css"
          integrity="sha384-MCw98/SFnGE8fJT3GXwEOngsV7Zt27NXFoaoApmYm81iuXoPkFOJwJ8ERdknLPMO" crossorigin="anonymous">
    <link href="formStyle.css" rel="stylesheet" type="text/css">
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
    <script src="formCheck.js"></script>


    <title>Input</title>
</head>
<body>

<form action="" class="main-form">
    <div id="formular">
        <div class="row">
            <div class="col">
                <div class="form-check form-check-inline">
                    <input class="form-check-input" type="radio" name="inlineRadioOptions" id="inlineRadio1" value="option1">
                    <label class="form-check-label" for="inlineRadio1">Mann</label>
                </div>
                <div class="form-check form-check-inline">
                    <input class="form-check-input" type="radio" name="inlineRadioOptions" id="inlineRadio2" value="option2">
                    <label class="form-check-label" for="inlineRadio2">Frau</label>
                </div>
            </div>
        </div>
        <div class="row">
            <div class="col">
                <div class="form-group">
                    <label for="vorname">Vorname</label>
                    <input type="text" name="vorname" id="vorname" class="form-control">
                </div>
            </div>
            <div class="col">
                <div class="form-group">
                    <label for="nachname">Nachname</label>
                    <input type="text" name="nachname" id="nachname" class="form-control">
                </div>
            </div>
        </div>
        <div class="row">
            <div class="col">
                <div class="form-group">
                    <label for="alter">Alter</label>
                    <input type="text" name="alter" id="alter" class="form-control">
                </div>
            </div>
        </div>
        <button type="submit" class="btn btn-outline-secondary" id="check">Check</button>
    </div>
</form>


<script src="https://code.jquery.com/jquery-3.3.1.slim.min.js"
        integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo"
        crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.3/umd/popper.min.js"
        integrity="sha384-ZMP7rVo3mIykV+2+9J3UJ46jBk0WLaUAdn689aCwoqbBJiSnjAK/l8WvCWPIPm49"
        crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/js/bootstrap.min.js"
        integrity="sha384-ChfqqxuZUCnJSK3+MXmPNIyE6ZbWh2IMqE241rYiqJxyMiZ6OW/JmZQ5stwEULTy"
        crossorigin="anonymous"></script>
</body>
</html>