diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..f97f1aa
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "viewer/static/bulma"]
+	path = viewer/static/bulma
+	url = https://github.com/jgthms/bulma
diff --git a/viewer/static/bulma b/viewer/static/bulma
new file mode 160000
index 0000000..734f2e9
--- /dev/null
+++ b/viewer/static/bulma
@@ -0,0 +1 @@
+Subproject commit 734f2e988c7e14b77e34b1da089b0402a4e602f3