work on cms; add templatetags, and few work on templates

cms/static/aircox/cms/styles.css

@@ -0,0 +1,50 @@
+body {
+    padding: 0;
+    margin: 0;
+}
+
+
+.page {
+    display: flex;
+}
+
+    .page .menu {
+        width: 20em;
+    }
+
+    .page .menu_left { margin-right: 0.5em; }
+    .page .menu_right { margin-left: 0.5em; }
+
+    .page main {
+        flex-grow: 1;
+    }
+
+
+.section {
+    vertical-align: top;
+}
+
+main .section {
+    width: calc(50% - 2em);
+    display: inline-block;
+    padding: 0.5em;
+}
+
+    main .section .section_content {
+        font-size: 0.95em;
+    }
+
+    main .section h1 {
+        font-size: 1.2em;
+    }
+
+    main .section * {
+        max-width: 100%;
+    }
+
+
+.post_item {
+    display: block;
+}
+
+