First refactoring to PHP 8.1

css/page.css

@@ -1,5 +1,5 @@
 body {
-	font-family: Arial;
+	font-family: Arial sans-serif;
 	font-size: 12px;
 	width: 1000px;
 	margin: auto;
@@ -11,8 +11,8 @@ h1 {
 	line-height: 1.2em;
 	color: #1a2d79;
 	font-weight: bold;
-	margin: 0px 0px 10px -5px;
-	padding: 5px 0px 20px 0px;
+	margin: 0 0 10px -5px;
+	padding: 5px 0 20px 0;
 	border-bottom: 1px dashed #999;
 }
 
@@ -21,7 +21,7 @@ h2 {
 	line-height: 1.2em;
 	color: #525760;
 	font-weight: bold;
-	margin: 20px 0px 10px -1px;	
+	margin: 20px 0 10px -1px;
 }
 
 h3 {
@@ -29,8 +29,8 @@ h3 {
 	line-height: 1.2em;
 	color: #525760;
 	font-weight: bold;
-	margin: 0px 0px 0px 0px;
-	padding: 20px 0px 20px 0px;
+	margin: 0 0 0 0;
+	padding: 20px 0 20px 0;
 }
 
 h4 {
@@ -38,11 +38,11 @@ h4 {
 	line-height: 1em;
 	color: #1a2d79;
 	font-weight: bold;
-	margin: 0px 0px 0px 0px;
+	margin: 0 0 0 0;
 }
 
 img{
-	border: 0px;
+	border: 0;
 }
 
 #header{
@@ -51,18 +51,18 @@ img{
 
 #header img{
 	padding-top: 5px;
-	padding-bottom: 0px;
+	padding-bottom: 0;
 }
 
 #greybar {
 	height: 30px;
 	background-image: url(../img/button_grau.jpg);
-	margin: 0px 0px 0px 200px;
+	margin: 0 0 0 200px;
 }
 
 #greybar ul{
 	list-style-type: none;
-	margin: 0px;
+	margin: 0;
 }
 
 #greybar li{
@@ -103,8 +103,8 @@ img{
 }
 
 #links ul{
-	margin: 0px;
-	padding-left: 0px;
+	margin: 0;
+	padding-left: 0;
 	width: 200px;
 }
 
@@ -143,9 +143,9 @@ img{
 }
 
 #inhalt {
-	margin-left: 0px;
+	margin-left: 0;
 	height: 600px;
-	padding: 0px 20px 0px 20px;
+	padding: 0 20px 0 20px;
 	text-align: justify;
 	background-color: #fff;
 	overflow: auto;
@@ -172,19 +172,19 @@ img.rechts {
 }
 
 img.referenz{
-	padding: 0px 0px 0px 0px;
+	padding: 0 0 0 0;
 }
 #clear {
 	overflow: hidden;
 	clear: left;
-	height: 0px;
-	margin: -1px 0px 0px 0px;
+	height: 0;
+	margin: -1px 0 0 0;
 	font-size: 1px;
 }
 
 #cleaner {
 	clear: both;
-	margin-top: 0px;
+	margin-top: 0;
 	position: fixed;
 }