diff --git a/client/src/components/InstrumentTeaser.vue b/client/src/components/InstrumentTeaser.vue
deleted file mode 100644
index b63a1a6f..00000000
--- a/client/src/components/InstrumentTeaser.vue
+++ /dev/null
@@ -1,41 +0,0 @@
-
-
- {{title}}
-
-
-
-
-
-
-
-
diff --git a/client/src/components/book-navigation/BookNavigation.vue b/client/src/components/book-navigation/BookNavigation.vue
index 01ecfb0f..3d054695 100644
--- a/client/src/components/book-navigation/BookNavigation.vue
+++ b/client/src/components/book-navigation/BookNavigation.vue
@@ -3,13 +3,14 @@
-
-
-
+
+ Instrumente
+
+
-
-
-
+
+
+
@@ -17,13 +18,11 @@
diff --git a/client/src/components/book-navigation/ContentNavigation.vue b/client/src/components/book-navigation/ContentNavigation.vue
new file mode 100644
index 00000000..28ccf46e
--- /dev/null
+++ b/client/src/components/book-navigation/ContentNavigation.vue
@@ -0,0 +1,103 @@
+
+
+
+
+
+
+
diff --git a/client/src/components/book-navigation/InstrumentNavigation.vue b/client/src/components/book-navigation/InstrumentNavigation.vue
deleted file mode 100644
index e46e2bb0..00000000
--- a/client/src/components/book-navigation/InstrumentNavigation.vue
+++ /dev/null
@@ -1,31 +0,0 @@
-
-
- Sprache und
- Kommunikation
-
- Gesellschaft
-
-
-
-
-
diff --git a/client/src/components/book-navigation/MobileSubnavigation.vue b/client/src/components/book-navigation/MobileSubnavigation.vue
index 4ae72695..b865c392 100644
--- a/client/src/components/book-navigation/MobileSubnavigation.vue
+++ b/client/src/components/book-navigation/MobileSubnavigation.vue
@@ -6,8 +6,11 @@
-
Instrumente
-
+
+
+ Instrumente
+
+
@@ -15,12 +18,10 @@
diff --git a/client/src/components/inputs/BaseInput.vue b/client/src/components/inputs/BaseInput.vue
index 6a5b8c7e..1c231125 100644
--- a/client/src/components/inputs/BaseInput.vue
+++ b/client/src/components/inputs/BaseInput.vue
@@ -3,9 +3,9 @@
-
+
diff --git a/client/src/components/instruments/InstrumentFilter.vue b/client/src/components/instruments/InstrumentFilter.vue
new file mode 100644
index 00000000..03916d2b
--- /dev/null
+++ b/client/src/components/instruments/InstrumentFilter.vue
@@ -0,0 +1,97 @@
+
+
+
+
+
+
+
+
+
diff --git a/client/src/components/modules/Module.vue b/client/src/components/modules/Module.vue
index 997f8c08..8c3f5eb2 100644
--- a/client/src/components/modules/Module.vue
+++ b/client/src/components/modules/Module.vue
@@ -30,7 +30,6 @@
-
diff --git a/client/src/components/objective-groups/ObjectiveGroups.vue b/client/src/components/objective-groups/ObjectiveGroups.vue
index 98c53d37..fd7b4593 100644
--- a/client/src/components/objective-groups/ObjectiveGroups.vue
+++ b/client/src/components/objective-groups/ObjectiveGroups.vue
@@ -1,22 +1,11 @@
-
-
-
-
-
-
-
+