Set the width for content wider, keep paragraphs narrow

Author: krassowski

docs/_static/css/custom.css

@@ -34,6 +34,10 @@ body div.nboutput.container div[class*='highlight'] pre {
 .wy-nav-content {
   /* Increase the width of the content from the default 800px;
   not using 100% as it makes reading sentences unbearable on 4K screens */
+  max-width: 1200px;
+}
+
+.wy-nav-content p {
   max-width: 900px;
 }