diff --git a/docs/source/source/_static/my.css b/docs/source/source/_static/my.css
new file mode 100644
index 0000000..20431fb
--- /dev/null
+++ b/docs/source/source/_static/my.css
@@ -0,0 +1,3 @@
+.wy-nav-content {
+    max-width: 90%;
+}
\ No newline at end of file