diff --git a/docs/conf.py b/docs/conf.py
index d169eaae0e..b4fbcc98b4 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -187,3 +187,16 @@
 .. |flex_min_version| replace:: {flex_min_version}
 
 """
+
+# The sphinx_rtd_theme does not properly handle wrapping long lines in
+# table cells when rendering to HTML due to a CSS issue (see
+# https://github.com/readthedocs/sphinx_rtd_theme/issues/1505).  Until
+# the issue is fixed upstream in sphinx_rtd_theme, we can simply
+# override the CSS here.
+rst_prolog += """
+.. raw:: html
+
+   <style>
+   .wy-table-responsive table td,.wy-table-responsive table th{white-space:normal}
+   </style>
+"""