body  {
	margin: 0; /* Es empfiehlt sich, margin (Rand) und padding (Auffüllung) des Body-Elements auf 0 einzustellen, um unterschiedlichen Browser-Standardeinstellungen Rechnung zu tragen. */
	padding: 0;
	text-align: center; /* Hierdurch wird der Container in IE 5*-Browsern zentriert. Dem Text wird dann im #container-Selektor die Standardausrichtung left (links) zugewiesen. */
	color: #FFFFFF;
	font-family: Verdana, Arial, Helvetica, sans-serif;
	font-size: 100%;
	background-color: #FFFFFF;
    }
    .twoColHybLtHdr #wrapper {
	width: 90%;  /* Hierdurch wird ein Container mit einer Breite erstellt, die 80% der Browserbreite beträgt. */
	background: #FFFFFF;
	margin: 0 auto;
	text-align: left;
	border-top-style: none;
	border-right-style: none;
	border-bottom-style: none;
	border-left-style: none;
	border-top-color: #FFFFFF;
	border-right-color: #FFFFFF;
	border-bottom-color: #FFFFFF;
	border-left-color: #FFFFFF;
    } 
	
#wrapper {
	text-align: left;
	width: 925px;
	margin-top: 0px;
	margin-right: auto;
	margin-bottom: 0px;
	margin-left: auto;
}
#logo {
	float: right;
	height: 90px;
	width: 80px;
	padding-top: 10px;
	padding-left: 825px;
}
#content {
	margin-top: 0px;
	float: right;
	width: 700px;
	padding: 0px;
}
#side{
	font-family: Verdana, Arial, Helvetica, sans-serif;
	font-size: small;
	font-style: normal;
	background-color: #FFFFFF;
	width: 150px;
	list-style-position: outside;
	list-style-type: circle;
	float: left;
	top: 0px;
}

  ul#sidebar {
	width: 150px;
	margin: 0;
	font-family: Verdana, Arial, Helvetica, sans-serif;
	font-size: small;
	float: left;
	list-style-type: none;
	color: #006666;
	padding: 0px;
	line-height: normal;
	background-color: #FFFFFF;
	list-style-position: outside;
	position: relative;
	 }
  * html ul#sidebar {  /* Korrekturen fuer IE 5.x */
    width: 150px;
    w\idth: 150px;
    padding-left: 0;
    padd\ing-left: 15px;
  }
  ul#sidebar li {
	list-style: none;
	margin: 0px;
	padding-top: 3px;
	padding-left: 5px;
	font-family: Verdana, Arial, Helvetica, sans-serif;
	font-size: small;
	width: 150px;
	color: #006666;
}
ul#sidebar li ul {
	padding-top: 3px;
	padding-left: 5px;
	font-family: Verdana, Arial, Helvetica, sans-serif;
	font-size: small;
	width: 150px;
	margin: 0;
  }
  ul#sidebar li ul li {
	font-family: Verdana, Arial, Helvetica, sans-serif;
	font-size: small;
	width: 150px;
	left: 2px;
  }
  * html ul#sidebar li ul li {  /* Korrektur fuer IE 5.x */
    margin-left: 1em;
    ma\rgin-left: 0;
  }
ul#sidebar a {
    padding-top:  3px;
    text-decoration: none;
    color: #006666; 
	background-color: #FFFFFF;
  }
  * html ul#sidebar a {
    width: 150px;    /* Breitenangabe fuer IE 5.x */
    w\idth: 8.8em;  /* Breitenangabe fuer IE 6 */
  }
  * html ul#sidebar li ul li a {
    width: 15%;    /* Breitenangabe fuer IE 5.x */
    w\idth: 7.8em;  /* Breitenangabe fuer IE 6 */
  }
ul#sidebar a:hover {
    color: #CC6600; 
	background-color: #FFFFFF;
  }
  /* Erweiterung zur dynamischen Ein-/Ausblendung */
  ul#sidebar li>ul {
    display: none; 
	top: 3px;
  }
  ul#sidebar li:hover>ul, ul#sidebar li>a#aktuell+ul {
    display: block;
  }

  /* Workaround fuer den IE 7 */
  *:first-child+html ul#sidebar ul {
    background-color: #FFFFFF; 
	padding-top:3px;
  }
#news {
	float: left;
	width: 150px;
}
p {
	margin: 5px 5px 0 0px;
}
.h1 {
	font-size: medium;
	font-weight: bold;
	font-family: Verdana, Arial, Helvetica, sans-serif;
	font-style: normal;
	line-height: normal;
	color: #006666;
}
.h2 {
	font-family: Verdana, Arial, Helvetica, sans-serif;
	font-size: medium;
	font-weight: bold;
	border-bottom-style: ridge;
	border-top-color: #006666;
	border-right-color: #006666;
	border-bottom-color: #006666;
	border-left-color: #006666;
	color: #006666;
	border-top-style: none;
	border-right-style: none;
	border-left-style: none;
	border-top-width: 2px;
	border-right-width: 2px;
	border-bottom-width: 2px;
	border-left-width: 2px;
}
.h3 {
	font-family: Verdana, Arial, Helvetica, sans-serif;
	font-size: small;
	color: #006666;
	font-weight: normal;
	text-align: left;
}
.h4 {
	font-family: Verdana, Arial, Helvetica, sans-serif;
	font-size: small;
	color: #000000;
	font-weight: normal;
	text-align: left;
	padding: 0px;
	}
.h5 {
	font-family: Verdana, Arial, Helvetica, sans-serif;
	font-size: small;
	font-style: normal;
	color: #006666;
	border-bottom-style: ridge;
	border-bottom-width: 1px;
	border-top-color: #006666;
	border-right-color: #006666;
	border-bottom-color: #006666;
	border-left-color: #006666;
}
.h6 {
	font-family: Verdana, Arial, Helvetica, sans-serif;
	font-size: small;
	font-style: bold;
	color: #006666;
	border-bottom-width: thin;
	border-bottom-style: ridge;
	border-bottom-color: #006666;	
}
.fotos {
	font-family: Verdana, Arial, Helvetica, sans-serif;
	font-size: 10px;
	color: #006666;
}
a:link {
	font-family: Verdana, Arial, Helvetica, sans-serif;
	font-size: small;
	font-style: normal;
	color: #006666;
	text-decoration: none;
}
a:visited {
	font-family: Verdana, Arial, Helvetica, sans-serif;
	font-size: small;
	font-style: normal;
	color: #CC6600;
	text-decoration: none;
}
<script type="text/javascript">
if(window.navigator.systemLanguage && !window.navigator.language) {
  function hoverIE() {
    var LI = document.getElementById("sidebar").firstChild;
    do {
      if (sucheUL(LI.firstChild)) {
        LI.onmouseover=einblenden; LI.onmouseout=ausblenden;
      }
      LI = LI.nextSibling;
    }
    while(LI);
  }

  function sucheUL(UL) {
    do {
      if(UL) UL = UL.nextSibling;
      if(UL && UL.nodeName == "UL") return UL;
    }
    while(UL);
    return false;
  }

  function einblenden() {
    var UL = sucheUL(this.firstChild);
    UL.style.display = "block"; UL.style.backgroundColor = "silver";
  }
  function ausblenden() {
    sucheUL(this.firstChild).style.display = "none";
  }

  window.onload=hoverIE;
}