diff --git a/htdocs/theme/cdg/cdg.css b/htdocs/theme/cdg/cdg.css
index 00b28d82f2c..9272b3d2074 100644
--- a/htdocs/theme/cdg/cdg.css
+++ b/htdocs/theme/cdg/cdg.css
@@ -138,4 +138,22 @@ td.valid
 { 
   background: pink;
   font-weight: bold;
-  }
\ No newline at end of file
+  }
+
+p#powered-by-dolibarr {
+	position: fixed;
+	margin: 0;
+	padding: 0;
+	bottom: 2px;
+	left: 0px;
+	z-index: 2;
+}
+
+p#powered-by-dolibarr a {
+	border: 1px solid black;
+	text-decoration: none;
+	color: black;
+	font-size: 0.9em;
+	padding-right: 5px;
+	padding-left: 5px;
+}
\ No newline at end of file
diff --git a/htdocs/theme/dolibarr/dolibarr.css b/htdocs/theme/dolibarr/dolibarr.css
index c801fc1e53a..c72485f9622 100644
--- a/htdocs/theme/dolibarr/dolibarr.css
+++ b/htdocs/theme/dolibarr/dolibarr.css
@@ -141,4 +141,23 @@ td.valid
 { 
   background: pink;
   font-weight: bold;
-  }
\ No newline at end of file
+  }
+
+
+p#powered-by-dolibarr {
+	position: fixed;
+	margin: 0;
+	padding: 0;
+	bottom: 2px;
+	left: 0px;
+	z-index: 2;
+}
+
+p#powered-by-dolibarr a {
+	border: 1px solid black;
+	text-decoration: none;
+	color: black;
+	font-size: 0.9em;
+	padding-right: 5px;
+	padding-left: 5px;
+}
\ No newline at end of file
diff --git a/htdocs/theme/freelug/freelug.css b/htdocs/theme/freelug/freelug.css
index 77ed76876a3..792e07015d2 100644
--- a/htdocs/theme/freelug/freelug.css
+++ b/htdocs/theme/freelug/freelug.css
@@ -148,4 +148,22 @@ td.valid
 { 
   background: pink;
   font-weight: bold;
-  }
\ No newline at end of file
+  }
+
+p#powered-by-dolibarr {
+	position: fixed;
+	margin: 0;
+	padding: 0;
+	bottom: 2px;
+	left: 0px;
+	z-index: 2;
+}
+
+p#powered-by-dolibarr a {
+	border: 1px solid black;
+	text-decoration: none;
+	color: black;
+	font-size: 0.9em;
+	padding-right: 5px;
+	padding-left: 5px;
+}
\ No newline at end of file
diff --git a/htdocs/theme/yellow/yellow.css b/htdocs/theme/yellow/yellow.css
index 1d4a7fda437..538158bddc5 100644
--- a/htdocs/theme/yellow/yellow.css
+++ b/htdocs/theme/yellow/yellow.css
@@ -198,4 +198,23 @@ td.small
 tr.nonpayed
 { 
   font-size: 0.9em; font-weight: bold;
-  }
\ No newline at end of file
+  }
+
+
+p#powered-by-dolibarr {
+	position: fixed;
+	margin: 0;
+	padding: 0;
+	bottom: 2px;
+	left: 0px;
+	z-index: 2;
+}
+
+p#powered-by-dolibarr a {
+	border: 1px solid black;
+	text-decoration: none;
+	color: black;
+	font-size: 0.9em;
+	padding-right: 5px;
+	padding-left: 5px;
+}
\ No newline at end of file