UPD: modified global css.

dav_base/static/dav_base/css/local.css

@@ -36,6 +36,7 @@ thead input {
     /* border-bottom: 2px solid #646464; */
     background-color: #58ab27;
     color: #e3e3e3;
+    margin-bottom: 1.2rem;
 }
 
 #page-header h2 {
@@ -65,8 +66,7 @@ thead input {
  * Messages
  */
 #messages div.alert {
-    margin-top: 1.2rem;
-    margin-bottom: 0rem;
+    margin-bottom: 1.2rem;
 }
 
 /*
@@ -74,10 +74,16 @@ thead input {
  */
 #page-body {
     padding-bottom: 4.8rem;
+    background-color: #fcc;
 }
 
-#page-body h5 {
-    margin-top: 0px;
+#page-body .vspace {
+    content: "\202f";
+    height: 0px;
+    margin-bottom: 1.2rem;
+}
+
+#page-body h5, #page-body h6 {
     font-weight: bold;
 }
 
@@ -114,13 +120,11 @@ thead input {
 /*
  * Misc
  */
-.container > .jumbotron,
-.container-fluid > .jumbotron {
-    margin-top: 2.4rem;
+.jumbotron > h1 {
+    margin-top: 0px;
 }
 
 .action-tabs {
-    margin-top: 2.4rem;
     margin-bottom: 1.2rem;
 }