updated docs styling

Author: egil

docs/templates/bunit/styles/main.css

@@ -0,0 +1,27 @@
+.navbar-brand {
+  line-height: 50px;
+  margin-right: 15px !important;
+}
+.navbar-brand>img {
+  display: inline-block;
+  margin-top: -8px;
+  margin-right: 5px;
+}
+
+.navbar-brand>span {
+  font-weight: 600;
+  font-size: 16px;
+  color: #fff;
+}
+
+.body-content {
+  font-size: 1.6rem;
+}
+
+.article {
+  margin-top: 80px; 
+}
+
+.sideaffix {
+  margin-top: 0;
+}