Creada carpeta assets y subcarpetas

assets/helpers/asset_helper.php

+<?php
+function asset_url($path) {
+return base_url().'assets/'.$path;
+}
\ No newline at end of file

assets/sticky-footer.css

+/* Sticky footer styles-------------------------------------------------- */
+html {
+position: relative;
+min-height: 100%;
+}
+body {
+/* Margin bottom by footer height */
+margin-bottom: 60px;
+}
+.footer {
+position: absolute;
+bottom: 0;
+width: 100%;
+/* Set the fixed height of the footer here */
+height: 60px;
+background-color: #f5f5f5;
+}
+/* Custom page CSS-------------------------------------------------- */
+/* Not required for template or sticky footer method. */
+.container {
+width: auto;
+max-width: 680px;
+padding: 0 15px;
+}
+.container .text-muted {
+margin: 20px 0;
+}
\ No newline at end of file