Zeig doch mal deinen Quellcode. Ich vermute Du hast das target-Attribut und/oder iframe falsch geschrieben.
hier der html code
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8"/>
<title> mein erste homepage</title>
<meta name="description" content=""/>
<meta name="author" content="fritz"/>
<meta name="keywords" content="wfa wsa wva"/>
<meta name="generator" content="Webocton - Scriptly (
www.scriptly.de)"/>
<meta name="viewport" content="width=device-width,initial-scale=1.0"/>
<link href="/HP/styles/style.css" type="text/css" rel="stylesheet"/>
</head>
<body>
<div id="Bereich-Kopf">
<div id="Bereich-Kopf-1">
<img src="/HP/images/Label (100-131).jpg" alt="WSA" title="WFA" />
</div>
<div id="Bereich-Kopf-2">
<h2>qwwertzuioiu rtzu <br />1234567890ß´ - 1234567890ß- 1234567890ß- 1234567890ß -<br /><br /><br />
</h2>
</div>
<div id="Bereich-Kopf-3">
<a href = "english-form.htm"> <img src="/HP/images/England (30-18).jpg" alt="English" title="English" height="18" width="30"/> </a>
<a href = "turkish.htm"> <img src="/HP/images/Türkei (30-18).jpg" alt="Türkisch" title="Türkisch" height="18" width="30" /> </a>
<a href = "russian.htm"> <img src="/HP/images/Russland (30-18).jpg" alt="Ruß" title="Rußisch" height="18" width="30"/> </a>
</div>
<div id="Bereich-Kopf-4">
<h3>Herr<br /> Fritz Kalkreuth
</h3>
<h4> Spiel<br />Sport<br />Spannung
</h4>
</div>
</div>
<div id="Bereich-Kopf-5">
<h5>Hier soll dann der Name der Homepage hin
</h5>
</div>
<div id="Bereich-Kopf-reg">
<div id="menu">
<ul>
<li class = "topmenu">
<a href="Formular.htm">Anmeldeformular</a>
<li class = "topmenu">
<a href="#">WSA</a>
<ul>
<li class="submenu"><a href = "/HP/images/SS.html#wsa" target ="mainframe"> WSA </a> </li>
<li class="submenu"><a href = "/HP/images/SS.html#wsa1" target ="main"> wsa 1 </a> </li>
<li class="submenu"><a href = "/HP/images/SS.html#wsa2" target ="main"> wsa 2 </a> </li>
<li class="submenu"><a href = "/HP/images/SS.html#wsa3" target ="main"> wsa 3</a> </li>
<li class="submenu"><a href = "/HP/images/SS.html#wsa4" target ="main"> wsa 4 </a> </li>
</ul>
</li>
<li class = "topmenu">
<a href="#">WFA</a>
<ul>
<li class="submenu"><a href = "wfa1.htm" target="main-frame"> wfa1 </a></li>
<li class="submenu"><a href = "wfa2.htm" target="main-frame"> wfa2 </a> </li>
<li class="submenu"><a href = "wfa3.htm" target="main-frame"> wfa3 </a> </li>
</ul>
</li>
<li class = "topmenu">
<a href="#">WVA</a>
<ul>
<li class="submenu"><a href = "Wva" target="main-frame"> wva </a> </li>
<li class="submenu"><a href = "wva.htm" target="main-frame"> wva1 </a> </li>
<li class="submenu"><a href = "wva.htm" target="main-frame"> wva2 </a> </li>
</ul>
</li>
</ul>
</div>
</div>
<div id="mainframe">
</div>
<div id="Bereich-Register-bottom">
<div id="menubot">
<li class = "topmenubot">
<a href="wir.htm" target="main-frame"> Über uns </a>
<a href="Impressum.htm" target="main-frame"> Impressum </a>
<a href="mailto:
[email protected]"> E-Mail </a>
<a href="map.htm" target="main-frame"> qwertuiopüs<br />1234567890asdfghjkl<br />yxcvbnmasdfghjkl </a>
</li>
</div>
</div>
<div id="Bereich-Register-bottom-1">
<h6>Terminvereinbarung: +49 xxx xxxxxxxxx - Fax: +49 xxxxxxx xxxxxxx - <a href = "mailto:
[email protected]">
[email protected]</a> - 1212212121 121212121212</a>
</h6>
</div>
</body>
</html>