<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <title></title>
</head>
<body>
    <nav>
        <a href="#menu1">menü 1</a>
        <a href="#menu2">menü 2</a>
        <a href="#menu3">menü 3</a>
        <a href="#menu4">menü 4</a>
    </nav>


    <section id="menu1">
        menu1
    </section>

    <section id="menu2">
        menu2
    </section>

    <section id="menu3">
        menu3
    </section>

    <section id="menu4">
        menu4
    </section>
 

</body>
</html>
Şeklinde denediğim zaman neden çalışmıyor?