Delete cdn/assets/css/404 directory

cdn/assets/css/404/main.css

@@ -1,77 +0,0 @@
-/*
-* @Author: SSimg
-* @Date:   2017-06-14 16:49:39
-* @Last Modified by:   SSimg
-* @Last Modified time: 2017-06-14 21:15:22
-*/
-body {
-    margin: 0;
-}
-
-body,
-html {
-    width: 100%;
-    height: 100%;
-    background-color: #272727;
-}
-
-body {
-    color: #FFF;
-    padding: 0;
-    min-height: 100%;
-    text-align: center;
-    display: table;
-    font-family: "Arial", "Helvetica", sans-serif;
-}
-
-h1 {
-    font-weight: 300;
-    margin: 0;
-    font-size: 52px;
-}
-
-h1 span {
-    font-weight: 700;
-}
-
-h2 {
-    font-weight: 100;
-    margin: 0;
-    font-size: 24px;
-}
-
-a {
-    text-decoration: none;
-    color: #fff;
-    font-size: inherit;
-}
-
-.cover {
-    display: table-cell;
-    vertical-align: middle;
-    padding: 0 20px;
-}
-
-.header {
-    background-color: #353535;
-    width: 100%;
-    position: absolute;
-    top: 0;
-    left: 0;
-    height: 60px;
-}
-
-.btn-back {
-    position: absolute;
-    top: 12px;
-    left: 20px;
-    padding: 10px 20px;
-    border-radius: 4px;
-    font-weight: 300;
-    font-size: 12px;
-    background-color: #272727;
-}
-
-.btn-back:hover {
-    background-color: #353535;
-}