diff --git a/docs/style.css b/docs/style.css
index 470c0d2f5..358d2eafe 100644
--- a/docs/style.css
+++ b/docs/style.css
@@ -1,19 +1,36 @@
-img[alt=screenshot] { width: 100%; }
+body {
+  font-family: Arial, Helvetica, sans-serif;
+}
+
+h1, h2, h3 {
+  color: #015f97;
+  font-family: Arial, Helvetica, sans-serif;
+}
+
+.img-center {
+  margin-left: auto;
+  margin-right: auto;
+  width: 300px;
+}
+
+/* Make all images responsive */
 img {
   display: block;
   margin: auto;
 }
+
+img[alt=screenshot] {
+  width: 100%;
+}
+
+/* Center all iframes */
 iframe {
   display: block;
   margin: 12px auto;
 }
-/*Ignore first heading in page in TOC list*/
+
+/* Ignore the first heading in the page in TOC list */
 li.toctree-l3:first-child {
-    display: none;
+  display: none;
 }
 
-.img-center {
-  width: 300px;
-  margin-left: auto;
-  margin-right: auto;
-}