diff --git a/index.html b/index.html
index 95775f7..85389f3 100644
--- a/index.html
+++ b/index.html
@@ -5,6 +5,8 @@
 <link rel="shortcut icon" href="favicon.ico">
 <link rel="stylesheet" href="main.css">
 
+<body>
+<main>
 <h1 id="header"><img src="favicon.ico" id="favicon">FliegendeWurst's corner of the WWW</h1>
 
 <span>Interesting tidbits</span>
@@ -42,10 +44,12 @@ Old projects:
 <li> <a href="https://github.com/FliegendeWurst/bwinf.35.1">bwinf.35.1</a>, my solutions to a computer science contest </li>
 </ul>
 
-Links: <a href="https://github.com/FliegendeWurst">Github profile</a>, <a href="https://gitlab.com/arnekeller">Gitlab profile</a>, <a href="https://www.boincstats.com/stats/-5/user/detail/86482458946/overview">BOINC contributions</a>.
+Links: <a href="https://github.com/FliegendeWurst">GitHub profile</a>, <a href="https://gitlab.com/arnekeller">GitLab profile</a>, <a href="https://git.fliegendewurst.eu/explore/repos" rel="nofollow">Gitea instance</a>, <a href="https://www.boincstats.com/stats/-5/user/detail/86482458946/overview">BOINC contributions</a>.
 
 <br>
 
 <!--
 <img src="https://www.boincstats.com/signature/-5/user/86482458946/project/sig.png" alt="BOINC profile">
 -->
+</main>
+</body>
\ No newline at end of file
diff --git a/main.css b/main.css
index 37197c1..6fe4f07 100644
--- a/main.css
+++ b/main.css
@@ -1,7 +1,3 @@
-body {
-	background-color: #d6cebf;
-}
-
 #favicon {
 	width: 2.5em;
 	height: 2.5em;
@@ -18,6 +14,16 @@ article {
 	max-width: 45em;
 }
 
+main {
+	max-width: 60em;
+	margin-left: auto;
+	margin-right: auto;
+	background-color: #d6cebf;
+	border: 0.3em outset gold;
+	border-radius: 1em;
+	padding: 1em;
+}
+
 #hero-img {
 	width: 30em;
 	padding: 3em;
@@ -38,3 +44,19 @@ article {
 		background-color: white;
 	}
 }
+
+@media (prefers-color-scheme: dark) {
+	html {
+		color: #fff;
+		background-color: #000;
+	}
+	a {
+		color: #aaf;
+	}
+	a:visited {
+		color: #faf;
+	}
+	main {
+		background-color: #222;
+	}
+}
\ No newline at end of file
diff --git a/raspberry-pi-temperature-monitoring.html b/raspberry-pi-temperature-monitoring.html
index a771d3c..ea2c5de 100644
--- a/raspberry-pi-temperature-monitoring.html
+++ b/raspberry-pi-temperature-monitoring.html
@@ -8,6 +8,7 @@
 </head>
 
 <body>
+<main>
 <h1 id="header"><img src="favicon.ico" id="favicon"/><a href="/">FliegendeWurst's corner of the WWW</a></h1>
 
 <h2>Raspberry Pi 0 W + sensors + OLED display = temperature monitoring and calendar</h2>
@@ -113,3 +114,5 @@ sudo mv nix /
 <div class="entry-footer">Posted 5th October 2022</div>
 
 </article>
+</main>
+</body>
diff --git a/tree-style-tabs-new-tab-button-bottom.html b/tree-style-tabs-new-tab-button-bottom.html
index 616bc39..6a641d2 100644
--- a/tree-style-tabs-new-tab-button-bottom.html
+++ b/tree-style-tabs-new-tab-button-bottom.html
@@ -9,6 +9,7 @@
 </head>
 
 <body>
+<main>
 <h1 id="header"><img src="favicon.ico" id="favicon"/><a href="/">FliegendeWurst's corner of the WWW</a></h1>
 
 <h2>Fixing the position of TST's new tab button</h2>
@@ -40,5 +41,6 @@ Simply add the CSS code below to TST's custom style option ("Advanced" > "Extra
 </pre>
 
 </article>
+</main>
 </body>
 </html>
\ No newline at end of file
diff --git a/z3-logic-puzzle-solving.html b/z3-logic-puzzle-solving.html
index ec8f46c..19d405f 100644
--- a/z3-logic-puzzle-solving.html
+++ b/z3-logic-puzzle-solving.html
@@ -8,6 +8,7 @@
 </head>
 
 <body>
+<main>
 <h1 id="header"><img src="favicon.ico" id="favicon"/><a href="/">FliegendeWurst's corner of the WWW</a></h1>
 
 <h2>Solving a logic puzzle using an SMT solver</h2>
@@ -259,3 +260,5 @@ while True:
 <div class="entry-footer">Posted 30th November 2022</div>
 
 </article>
+</main>
+</body>
\ No newline at end of file
