diff --git a/CHANGELOG.md b/CHANGELOG.md
index e95e08e5..6ea1f274 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,6 +13,7 @@ All notable changes to this project will be documented in this file.
 ### Fixed
 
 - TalkAPI: In One-to-One conversations the `status_message` and `status_icon` fields were always empty.
+- Missing CSS styles in the documentation. #143
 
 ## [0.3.0 - 2023-09-28]
 
diff --git a/docs/conf.py b/docs/conf.py
index 642ffcaf..ea8859db 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -71,6 +71,11 @@
 
 autodoc_member_order = "bysource"
 
+# Add any paths that contain custom static files (such as style sheets) here,
+# relative to this directory. They are copied after the builtin static files,
+# so a file named "default.css" will overwrite the builtin "default.css".
+html_static_path = ["resources"]
+
 
 def setup(app):
     app.add_js_file("js/script.js")
diff --git a/docs/resources/css/styles.css b/docs/resources/css/styles.css
index 111f8408..62f995e6 100644
--- a/docs/resources/css/styles.css
+++ b/docs/resources/css/styles.css
@@ -6,3 +6,7 @@ th p {
     font-size: 1rem;
     margin-bottom: 0;
 }
+
+.wy-nav-content {
+    max-width: 80% !important;
+}