diff --git a/src/Analysis_rewrite.typ b/src/Analysis_rewrite.typ
index b1bee0b..3704924 100644
--- a/src/Analysis_rewrite.typ
+++ b/src/Analysis_rewrite.typ
@@ -1,3 +1,5 @@
+#import "lib/common_rewrite.typ" : *
+
 #set page(
   paper: "a4", 
   margin: (
@@ -50,7 +52,6 @@
 #let colorAbleitung = color.hsl(356.92deg, 92.13%, 75.1%)
 #let colorIntegral = color.hsl(34.87deg, 92.13%, 75.1%)
 
-#let bgBlock(body, fill: color) = block(body, fill:fill.lighten(80%), width: 100%, inset: (bottom: 2mm))
 
 #columns(4, gutter: 2mm)[
   #bgBlock(fill: colorAllgemein)[
diff --git a/src/lib/common_rewrite.typ b/src/lib/common_rewrite.typ
new file mode 100644
index 0000000..2521372
--- /dev/null
+++ b/src/lib/common_rewrite.typ
@@ -0,0 +1,24 @@
+#let bgBlock(body, fill: color) = block(body, fill:fill.lighten(80%), width: 100%, inset: (bottom: 2mm))
+
+#let SeperatorLine = line(length: 100%, stroke: (paint: black, thickness: 0.3mm))
+#let MathAlignLeft(e) = {
+  align(left, block(e))
+}
+
+#let subHeading(it: content, fill: color) = {
+  box(
+    align(
+      top+center,
+      text(
+        it,
+        size: 10pt,
+        weight: "regular",
+        style: "italic",
+      )
+    ),
+    fill: fill,
+    width: 100%,
+    inset: 1mm,
+    height: auto
+  )
+}