diff --git a/404.html b/404.html
deleted file mode 100644
index 3ced6e8..0000000
--- a/404.html
+++ /dev/null
@@ -1,126 +0,0 @@
-
-<!DOCTYPE html>
-<html lang="en">
-<head>
-<meta charset="utf-8">
-<meta http-equiv="X-UA-Compatible" content="IE=edge">
-<meta name="viewport" content="width=device-width, initial-scale=1">
-
-<title>404 - Page Not Found</title>
-
-<style id="" media="all">/* vietnamese */
-@font-face {
-  font-family: 'Cabin';
-  font-style: normal;
-  font-weight: 400;
-  font-stretch: 100%;
-  src: url(/fonts.gstatic.com/s/cabin/v18/u-4i0qWljRw-PfU81xCKCpdpbgZJl6XvptnsBXw.woff2) format('woff2');
-  unicode-range: U+0102-0103, U+0110-0111, U+0128-0129, U+0168-0169, U+01A0-01A1, U+01AF-01B0, U+1EA0-1EF9, U+20AB;
-}
-/* latin-ext */
-@font-face {
-  font-family: 'Cabin';
-  font-style: normal;
-  font-weight: 400;
-  font-stretch: 100%;
-  src: url(/fonts.gstatic.com/s/cabin/v18/u-4i0qWljRw-PfU81xCKCpdpbgZJl6Xvp9nsBXw.woff2) format('woff2');
-  unicode-range: U+0100-024F, U+0259, U+1E00-1EFF, U+2020, U+20A0-20AB, U+20AD-20CF, U+2113, U+2C60-2C7F, U+A720-A7FF;
-}
-/* latin */
-@font-face {
-  font-family: 'Cabin';
-  font-style: normal;
-  font-weight: 400;
-  font-stretch: 100%;
-  src: url(/fonts.gstatic.com/s/cabin/v18/u-4i0qWljRw-PfU81xCKCpdpbgZJl6Xvqdns.woff2) format('woff2');
-  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
-}
-/* vietnamese */
-@font-face {
-  font-family: 'Cabin';
-  font-style: normal;
-  font-weight: 700;
-  font-stretch: 100%;
-  src: url(/fonts.gstatic.com/s/cabin/v18/u-4i0qWljRw-PfU81xCKCpdpbgZJl6XvptnsBXw.woff2) format('woff2');
-  unicode-range: U+0102-0103, U+0110-0111, U+0128-0129, U+0168-0169, U+01A0-01A1, U+01AF-01B0, U+1EA0-1EF9, U+20AB;
-}
-/* latin-ext */
-@font-face {
-  font-family: 'Cabin';
-  font-style: normal;
-  font-weight: 700;
-  font-stretch: 100%;
-  src: url(/fonts.gstatic.com/s/cabin/v18/u-4i0qWljRw-PfU81xCKCpdpbgZJl6Xvp9nsBXw.woff2) format('woff2');
-  unicode-range: U+0100-024F, U+0259, U+1E00-1EFF, U+2020, U+20A0-20AB, U+20AD-20CF, U+2113, U+2C60-2C7F, U+A720-A7FF;
-}
-/* latin */
-@font-face {
-  font-family: 'Cabin';
-  font-style: normal;
-  font-weight: 700;
-  font-stretch: 100%;
-  src: url(/fonts.gstatic.com/s/cabin/v18/u-4i0qWljRw-PfU81xCKCpdpbgZJl6Xvqdns.woff2) format('woff2');
-  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
-}
-</style>
-<style id="" media="all">/* cyrillic-ext */
-@font-face {
-  font-family: 'Montserrat';
-  font-style: normal;
-  font-weight: 900;
-  src: url(/fonts.gstatic.com/s/montserrat/v18/JTURjIg1_i6t8kCHKm45_epG3gTD_u50.woff2) format('woff2');
-  unicode-range: U+0460-052F, U+1C80-1C88, U+20B4, U+2DE0-2DFF, U+A640-A69F, U+FE2E-FE2F;
-}
-/* cyrillic */
-@font-face {
-  font-family: 'Montserrat';
-  font-style: normal;
-  font-weight: 900;
-  src: url(/fonts.gstatic.com/s/montserrat/v18/JTURjIg1_i6t8kCHKm45_epG3g3D_u50.woff2) format('woff2');
-  unicode-range: U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
-}
-/* vietnamese */
-@font-face {
-  font-family: 'Montserrat';
-  font-style: normal;
-  font-weight: 900;
-  src: url(/fonts.gstatic.com/s/montserrat/v18/JTURjIg1_i6t8kCHKm45_epG3gbD_u50.woff2) format('woff2');
-  unicode-range: U+0102-0103, U+0110-0111, U+0128-0129, U+0168-0169, U+01A0-01A1, U+01AF-01B0, U+1EA0-1EF9, U+20AB;
-}
-/* latin-ext */
-@font-face {
-  font-family: 'Montserrat';
-  font-style: normal;
-  font-weight: 900;
-  src: url(/fonts.gstatic.com/s/montserrat/v18/JTURjIg1_i6t8kCHKm45_epG3gfD_u50.woff2) format('woff2');
-  unicode-range: U+0100-024F, U+0259, U+1E00-1EFF, U+2020, U+20A0-20AB, U+20AD-20CF, U+2113, U+2C60-2C7F, U+A720-A7FF;
-}
-/* latin */
-@font-face {
-  font-family: 'Montserrat';
-  font-style: normal;
-  font-weight: 900;
-  src: url(/fonts.gstatic.com/s/montserrat/v18/JTURjIg1_i6t8kCHKm45_epG3gnD_g.woff2) format('woff2');
-  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
-}
-</style>
-
-<link type="text/css" rel="stylesheet" href="assets/404.css" />
-
-
-<!--[if lt IE 9]>
-		  <script src="https://oss.maxcdn.com/html5shiv/3.7.3/html5shiv.min.js"></script>
-		  <script src="https://oss.maxcdn.com/respond/1.4.2/respond.min.js"></script>
-		<![endif]-->
-<meta name="robots" content="noindex, follow">
-</head>
-<body>
-<div id="notfound">
-<div class="notfound">
-<div class="notfound-404">
-<h3>Oops! Page not found</h3>
-<h1><span>4</span><span>0</span><span>4</span></h1>
-</div>
-<h2>we are sorry, but the page you requested was not found</h2>
-</div>
-</div>
\ No newline at end of file
