Now have the tiles working properly. Also, user interface somewhat improved.

resources/public/css/standard.css

@@ -9,13 +9,14 @@ body {
   width:80%;
   margin: 0 10%;
   padding: 0;
-  padding-top: 8em;
-	padding-bottom: 2em;
+  padding-top: 12em;
+  padding-bottom: 2em;
 }
 
 /* footer of the document, within #main-container */
 #footer {
   clear: both;
+  font-size: smaller;
   padding: 0 2em;
   text-align: center;
   color:white;
@@ -33,15 +34,18 @@ body {
 #header {
   width:100%;
   margin: -10px;
-  padding: 0.5em 10%;
+  padding: 0.25em 10%;
   position: fixed;
   z-index: 149;
   background-color: black;
-  background-image: "../img/earth-space-strip.jpg";
   background-repeat: no-repeat;
   color: white;
 }
 
+#header h1 {
+	background-color: transparent;
+}
+
 #header-logo {
   float: left;
   padding-right: 2.5em;
@@ -80,6 +84,10 @@ li.nav-item a:active { background: gray; color: white; }
   border: thin solid white;
 }
 
+.world {
+	font-size: 8pt;
+}
+
 div.error {
   width: 100%;
 }
@@ -97,7 +105,7 @@ h1 {
 h1, h2, h3, h4, h5 {
   background-color: black;
   color: white;
-  padding-left: 20px;
+  padding-left: -20px;
 }