AS1 update

assets/css/my-remark.scss

@@ -657,6 +657,13 @@ html.remark-container, body.remark-container {
   padding-left: 1em;
 }
 
+.left-column70 {
+  width: 65%;
+  float: left;
+  padding-left: 1em;
+}
+
+
 .right-column20 {
   width: 15%;
   float: left;