diff --git a/content/writeups/google-ctf/2021/beginners-quest/4.md b/content/writeups/google-ctf/2021/beginners-quest/4.md
index a179ec9..02e63d2 100644
--- a/content/writeups/google-ctf/2021/beginners-quest/4.md
+++ b/content/writeups/google-ctf/2021/beginners-quest/4.md
@@ -43,7 +43,7 @@ You’re taking a stroll in the lab, when Dr. Klostermann is calling your name:
 
 [attachment.zip](/files/writeups/google-ctf/2021/beginners-quest/4/attachment.zip)
 
-{{< collapsible-block badge="c" title="chal.c" isCollapsed="true" >}}
+{{< collapsible-block badge="c" title="chal.c" isCollapsed="true" class="tight" >}}
 
 ```c
 #include <stdbool.h>
diff --git a/content/writeups/google-ctf/2021/beginners-quest/5.md b/content/writeups/google-ctf/2021/beginners-quest/5.md
index 6c90caa..265acf9 100644
--- a/content/writeups/google-ctf/2021/beginners-quest/5.md
+++ b/content/writeups/google-ctf/2021/beginners-quest/5.md
@@ -50,7 +50,7 @@ As you and Gökhan are leaving the crates to enter a car, you spot the tough guy
 
 [attachment.zip](/files/writeups/google-ctf/2021/beginners-quest/5/attachment.zip)
 
-{{< collapsible-block badge="py" title="RoboCaller1337.py" isCollapsed="true" >}}
+{{< collapsible-block badge="py" title="RoboCaller1337.py" isCollapsed="true" class="tight" >}}
 
 ```py
 import random
@@ -105,7 +105,7 @@ if __name__ == "__main__":
 
 {{< /collapsible-block >}}
 
-{{< collapsible-block badge="txt" title="robo_numbers_list.txt" isCollapsed="true" >}}
+{{< collapsible-block badge="txt" title="robo_numbers_list.txt" isCollapsed="true" class="tight" >}}
 
 ```txt
 263-170-6234
diff --git a/content/writeups/google-ctf/2021/beginners-quest/6.md b/content/writeups/google-ctf/2021/beginners-quest/6.md
index b6c9bd9..6ce6fd4 100644
--- a/content/writeups/google-ctf/2021/beginners-quest/6.md
+++ b/content/writeups/google-ctf/2021/beginners-quest/6.md
@@ -50,7 +50,7 @@ After having climbed through the window, you wait for a while on the ground. The
 
 [attachment.zip](/files/writeups/google-ctf/2021/beginners-quest/6/attachment.zip)
 
-{{< collapsible-block badge="txt" title="encodings" isCollapsed="true" >}}
+{{< collapsible-block badge="txt" title="encodings" isCollapsed="true" class="tight" >}}
 
 ```text
 I made a super secret encoder. I remember using:
@@ -66,7 +66,7 @@ I also use gzip and zlib (to compress the stuff) and I like hiding things in fil
 
 {{< /collapsible-block >}}
 
-{{< collapsible-block badge="txt" title="chall.txt" isCollapsed="true" >}}
+{{< collapsible-block badge="txt" title="chall.txt" isCollapsed="true" class="tight" >}}
 
 ```txt
 File is too large to display here.
diff --git a/content/writeups/google-ctf/2021/beginners-quest/7.md b/content/writeups/google-ctf/2021/beginners-quest/7.md
index c6fc97a..087dfe2 100644
--- a/content/writeups/google-ctf/2021/beginners-quest/7.md
+++ b/content/writeups/google-ctf/2021/beginners-quest/7.md
@@ -42,7 +42,7 @@ Nowak is very impressed by your skills. You and him sit down by a table, and you
 
 [attachment.zip](/files/writeups/google-ctf/2021/beginners-quest/7/attachment.zip)
 
-{{< collapsible-block badge="python" title="chall.py" isCollapsed="true" >}}
+{{< collapsible-block badge="python" title="chall.py" isCollapsed="true" class="tight" >}}
 
 ```py
 from Crypto.Util.number import *
diff --git a/themes/maik-blog/assets/scss/_collapsible-block.scss b/themes/maik-blog/assets/scss/_collapsible-block.scss
index 329d581..ed7e0ef 100644
--- a/themes/maik-blog/assets/scss/_collapsible-block.scss
+++ b/themes/maik-blog/assets/scss/_collapsible-block.scss
@@ -1,7 +1,11 @@
 .collapsible-block {
     position: relative;
     width: 100%;
-    margin: 40px 0;
+    margin: 30px 0;
+
+    &.tight {
+        margin: 15px 0;
+    }
 
     input[type="checkbox"] {
         position: absolute;
diff --git a/themes/maik-blog/layouts/shortcodes/collapsible-block.html b/themes/maik-blog/layouts/shortcodes/collapsible-block.html
index e969bb5..f4f7aec 100644
--- a/themes/maik-blog/layouts/shortcodes/collapsible-block.html
+++ b/themes/maik-blog/layouts/shortcodes/collapsible-block.html
@@ -1,6 +1,6 @@
 {{ $id := delimit (shuffle (seq 1 9)) "" }}
 
-<div class="collapsible-block">
+<div class="collapsible-block {{- with .Get "class" }} {{ . }}{{ end }}">
   <input id="{{ .Get "id" | default $id }}" type="checkbox" {{ if ( eq ( .Get "isCollapsed" ) "true" ) -}} checked
     {{- end }} />
   <label for="{{ .Get "id" | default $id }}">