Merge branch 'post/python-object-replacement'

static/main.css

@@ -205,6 +205,7 @@ pre code {
     border: 1px solid #e8e8e8;
     font-size: 14px;
     line-height: 1.35em;
+    margin: 1em 0;
     padding-left: 16px;
 }