diff --git a/.gitmodules b/.gitmodules
index 6c66587..50f2a7a 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,6 @@
 [submodule "external/spdlog"]
 	path = external/spdlog
 	url = https://github.com/gabime/spdlog.git
+[submodule "external/doxygen-awesome-css"]
+	path = external/doxygen-awesome-css
+	url = https://github.com/jothepro/doxygen-awesome-css.git
diff --git a/Doxyfile b/Doxyfile
index 1de200a..fd309fe 100644
--- a/Doxyfile
+++ b/Doxyfile
@@ -1248,7 +1248,7 @@ HTML_STYLESHEET        =
 # list). For an example see the documentation.
 # This tag requires that the tag GENERATE_HTML is set to YES.
 
-HTML_EXTRA_STYLESHEET  =
+HTML_EXTRA_STYLESHEET  = external/doxygen-awesome-css/doxygen-awesome.css
 
 # The HTML_EXTRA_FILES tag can be used to specify one or more extra images or
 # other source files which should be copied to the HTML output directory. Note
diff --git a/external/doxygen-awesome-css b/external/doxygen-awesome-css
new file mode 160000
index 0000000..280a0c5
--- /dev/null
+++ b/external/doxygen-awesome-css
@@ -0,0 +1 @@
+Subproject commit 280a0c57db5e48e1aa151e2c3b2ecd0f2a29adf9