Add project files.

wwwroot/css/rpinvr.css

@@ -0,0 +1,32 @@
+html, body {
+    height: 100%;
+    width: 100%;
+    margin: 0;
+    padding: 0;
+    overflow: hidden;
+}
+
+body {
+    background-color: rgb(255, 255, 255);
+}
+
+.fullheight {
+    height: 100%;
+}
+
+.left {
+    width: 250px;
+    text-align: center;
+}
+
+.right {
+    flex: 1;
+}
+
+table {
+    height: 100%;
+}
+
+div.border {
+    cursor: move;
+}