diff --git a/assets/css/stylesheet.css b/assets/css/stylesheet.css
index 660bdc0..73d55eb 100755
--- a/assets/css/stylesheet.css
+++ b/assets/css/stylesheet.css
@@ -7,7 +7,7 @@ body {
 
 .overlay {
   display: flex;
-  background-image: url("/quartznet/assets/images/bluenebula2.png");
+  background-image: url("/quartznet/assets/images/bluenebula.webp");
   background-size: cover;
   background-position: center;
   min-height: 200px;
@@ -48,13 +48,13 @@ nav li {
 
 /* Change color on hover */
 nav li a {
-  margin-right: 50px;
+  margin-left: 20px;
+  margin-right: 20px;
   text-decoration: none;
 }
 
 main {
   margin-top: 30px;
-  min-height: 600px;
 }
 
 /* Content types */
diff --git a/assets/css/themes.css b/assets/css/themes.css
index 2254613..0ec560c 100755
--- a/assets/css/themes.css
+++ b/assets/css/themes.css
@@ -1,31 +1,16 @@
 
-/*Default theme*/
+/* Default theme */
 :root {
-  --background-color: #fdfdfd;
-  --headings-color: #111111;
-  --font-color: #333333;
-
-  --site-name-color: #ffffff;;
-  --site-description-color: #ffffff;
-  --nav-link-color: #57cc8a;
-  --nav-link-hover-color: #ffffff;
-  --link-color: #8bb8df;
-  --link-color-hover: 8bb8df;
+  --background-color: #222222;
+  --headings-color: #ffffff;
+  --font-color: #ffffff;
 }
 
 /* Dark theme */
 html[data-theme='dark'] {
-  --background-color: #232629;
+  --background-color: #222222;
   --headings-color: #ffffff;
   --font-color: #ffffff;
-  
-  --site-name-color: #ffffff;;
-  --site-description-color: #ffffff;
-  --nav-link-color: #57cc8a;
-  --nav-link-hover-color: #ffffff;
-  --link-color: #8bb8df;
-  --link-color-hover: 8bb8df;
-  --border-color: #3d3d3d;
 }
 
 body {
@@ -41,17 +26,10 @@ hr {
   background-color: #eeeeee;
 }
 
-header {
-  /* background-color: #4e5b69; */
+.overlay {
   border-bottom: 2px solid #eeeeee;
 }
 
-nav {
-  /* background-color: rgba(0, 0, 0, 10); */
-  /* background-color: #232629; */
-  /* background-color: #23262980; */
-}
-
 li a:hover {
   border-bottom: 3px solid white;
   text-decoration: none;
@@ -64,11 +42,3 @@ a {
 a:hover {
   color: white;
 }
-
-main p {
-  /* color: #C8C8C8; */
-}
-
-footer {
-
-}
diff --git a/assets/images/bluenebula.png b/assets/images/bluenebula.png
new file mode 100755
index 0000000..1e63b1b
Binary files /dev/null and b/assets/images/bluenebula.png differ
diff --git a/assets/images/bluenebula.webp b/assets/images/bluenebula.webp
new file mode 100644
index 0000000..8b0f1d5
Binary files /dev/null and b/assets/images/bluenebula.webp differ
diff --git a/assets/images/bluenebula2.png b/assets/images/bluenebula2.png
deleted file mode 100755
index 0483a9c..0000000
Binary files a/assets/images/bluenebula2.png and /dev/null differ