diff --git a/doc_src/python_docs_theme/static/pydoctheme.css b/doc_src/python_docs_theme/static/pydoctheme.css
index 308af8265..6cdeb8240 100644
--- a/doc_src/python_docs_theme/static/pydoctheme.css
+++ b/doc_src/python_docs_theme/static/pydoctheme.css
@@ -53,8 +53,21 @@ div.sphinxsidebar {
     border-radius: 5px;
     line-height: 130%;
     font-size: smaller;
-    float: left;
-    postion: fixed;
+    overflow: auto;
+    position: absolute;
+    margin-left: 0;
+    float: none;
+}
+
+/* On screens that are less than 700px wide remove the sidebar */
+@media screen and (max-width: 700px) {
+  div.sphinxsidebar {
+    width: 100%;
+    height: auto;
+    position: relative;
+  }
+  div.content {margin-left: 0;}
+  div.bodywrapper { margin: 0; }
 }
 
 div.sphinxsidebar h3, div.sphinxsidebar h4 {