diff --git a/notebooks/styles.css b/notebooks/styles.css
index d22362cf1773816629389525717c4e9171e8bd69..ae7895e33034786b479c756152d159c733d671cd 100644
--- a/notebooks/styles.css
+++ b/notebooks/styles.css
@@ -1,26 +1,32 @@
 .cell-output pre {
-    margin-left: 0.8rem;
-    margin-top: 0;
-    background: none;
-    border-left: 2px solid lightsalmon;
-    border-top-left-radius: 0;
-    border-top-right-radius: 0;
-  }
+  margin-left: 0.8rem;
+  margin-top: 0;
+  background: none;
+  border-left: 2px solid lightsalmon;
+  border-top-left-radius: 0;
+  border-top-right-radius: 0;
+}
 
 .cell-output .sourceCode {
-    background: none;
-    margin-top: 0;
-  }
+  background: none;
+  margin-top: 0;
+}
 
 .cell > .sourceCode {
-    margin-bottom: 0;
-  }
+  margin-bottom: 0;
+}
 
 /* header LexImpact */
+[data-bs-theme=dark] .navbar {
+  background-color: #A6A00C;
+}
+.navbar {
+  background-color: #A6A00C;
+}
 .navbar-dark {
-    background-color: #A6A00C;
-  }
+  background-color: #A6A00C;
+}
 
 i.bi.bi-github{
-    display: none;
-  }
+  display: none;
+}