diff --git a/doc_src/python_docs_theme/static/pygments.css b/doc_src/python_docs_theme/static/pygments.css
index fba518fad..b213f5d1f 100644
--- a/doc_src/python_docs_theme/static/pygments.css
+++ b/doc_src/python_docs_theme/static/pygments.css
@@ -1,5 +1,4 @@
 .highlight .hll { background-color: #ffffcc }
-.highlight  { background: #f8f8f8; }
 .highlight .err { color: #a40000; border: 1px solid #ef2929 } /* Error */
 .highlight .k { color: #204a87; font-weight: bold } /* Keyword */
 .highlight .o { color: #00a6b2; } /* Operator */