Major changes to the structure of pages to utilize the flex layout system.

public/admin/items.css

@@ -0,0 +1,45 @@
+#items {
+  height: 100%;
+}
+#items #listView {
+  height: 100%;
+  flex-flow: column nowrap;
+  justify-content: space-around;
+  align-items: flex-start;
+  align-content: center;
+  display: -webkit-box;
+  display: -moz-box;
+  display: -ms-flexbox;
+  display: -moz-flex;
+  display: -webkit-flex;
+  display: flex;
+}
+#items #listView .buttonContainer {
+  flex: none;
+}
+#items #listView #dataTable {
+  overflow-y: auto;
+  flex: auto;
+  align-self: stretch;
+  height: 10%;
+  max-height: 100%;
+}
+#items #listView .padding {
+  flex: none;
+  height: 1px;
+  width: 100%;
+}
+#items #DFAliases {
+  width: 100%;
+  height: 150px;
+  overflow: auto;
+}
+#items #DFAliases span {
+  font-family: Arial, Helvetica, sans-serif;
+  font-size: 1.5em;
+  cursor: pointer;
+  display: block;
+}
+#items #DFAliases span.selected {
+  background-color: rgba(255,248,131,0.51);
+}