diff --git a/includes/specs/meta.spec.js b/includes/specs/meta.spec.js
index 28d96dc..f5f2de3 100644
--- a/includes/specs/meta.spec.js
+++ b/includes/specs/meta.spec.js
@@ -4,7 +4,7 @@ module.exports = {
     favicon: {
         [type]: 'string',
         [doc]: 'Path or URL to the website\'s icon',
-        [defaultValue]: null
+        [defaultValue]: '/images/favicon.svg',
     },
     rss: {
         [type]: 'string',
diff --git a/includes/specs/plugins.spec.js b/includes/specs/plugins.spec.js
index c8f39e8..1196770 100644
--- a/includes/specs/plugins.spec.js
+++ b/includes/specs/plugins.spec.js
@@ -5,22 +5,27 @@ module.exports = {
     [doc]: 'Other plugin settings',
     gallery: {
         [type]: 'boolean',
-        [doc]: 'Enable the lightGallery and Justified Gallery plugins',
+        [doc]: 'Enable the lightGallery and Justified Gallery plugins (http://ppoffice.github.io/hexo-theme-icarus/2016/07/08/plugin/Gallery/)',
         [defaultValue]: true
     },
     'outdated-browser': {
         [type]: 'boolean',
-        [doc]: 'Enable the Outdated Browser plugin',
+        [doc]: 'Enable the Outdated Browser plugin (http://outdatedbrowser.com/)',
         [defaultValue]: true
     },
     animejs: {
         [type]: 'boolean',
-        [doc]: 'Enable page animations',
+        [doc]: 'Enable page animations (http://animejs.com/)',
         [defaultValue]: true
     },
     mathjax: {
         [type]: 'boolean',
-        [doc]: 'Enable the MathJax plugin',
+        [doc]: 'Enable the MathJax plugin (http://ppoffice.github.io/hexo-theme-icarus/2018/01/01/plugin/MathJax/)',
+        [defaultValue]: true
+    },
+    'back-to-top': {
+        [type]: 'boolean',
+        [doc]: 'Show the back to top button on mobile devices',
         [defaultValue]: true
     },
     'google-analytics': {
diff --git a/includes/specs/widgets.spec.js b/includes/specs/widgets.spec.js
index f76479e..8cda95d 100644
--- a/includes/specs/widgets.spec.js
+++ b/includes/specs/widgets.spec.js
@@ -42,7 +42,7 @@ const DEFAULT_WIDGETS = [
         position: 'left',
         links: {
             Hexo: 'https://hexo.io',
-            Github: 'https://github.com/ppoffice'
+            PPOffice: 'https://github.com/ppoffice'
         }
     },
     {
@@ -121,7 +121,7 @@ const LinksSpec = {
 
 module.exports = {
     [type]: 'array',
-    [doc]: 'Sidebar widget settings',
+    [doc]: 'Sidebar widget settings (http://ppoffice.github.io/hexo-theme-icarus/categories/Widgets/)',
     [defaultValue]: DEFAULT_WIDGETS,
     '*': {
         [type]: 'object',
diff --git a/includes/tasks/check_config.js b/includes/tasks/check_config.js
index c747b1a..1632ac1 100644
--- a/includes/tasks/check_config.js
+++ b/includes/tasks/check_config.js
@@ -11,7 +11,7 @@ const ConfigGenerator = require('../common/ConfigGenerator');
 
 const CONFIG_PATH = path.join(__dirname, '../..', '_config.yml');
 
-logger.info('Checking if the configuration file exists...');
+logger.info('Validating the configuration file');
 
 if (!fs.existsSync(CONFIG_PATH)) {
     const relativePath = path.relative(process.cwd(), CONFIG_PATH);
@@ -21,7 +21,6 @@ if (!fs.existsSync(CONFIG_PATH)) {
     process.exit(0);
 }
 
-logger.info('Validating the configuration file...');
 const validator = new ConfigValidator(rootSpec);
 const config = yaml.safeLoad(fs.readFileSync(CONFIG_PATH));
 try {
diff --git a/includes/tasks/welcome.js b/includes/tasks/welcome.js
index ad2d336..264f15e 100644
--- a/includes/tasks/welcome.js
+++ b/includes/tasks/welcome.js
@@ -1,5 +1,10 @@
 const logger = require('hexo-log')();
 
 logger.info(`=======================================
-                  Icarus V2
+ ██╗ ██████╗ █████╗ ██████╗ ██╗   ██╗███████╗
+ ██║██╔════╝██╔══██╗██╔══██╗██║   ██║██╔════╝
+ ██║██║     ███████║██████╔╝██║   ██║███████╗
+ ██║██║     ██╔══██║██╔══██╗██║   ██║╚════██║
+ ██║╚██████╗██║  ██║██║  ██║╚██████╔╝███████║
+ ╚═╝ ╚═════╝╚═╝  ╚═╝╚═╝  ╚═╝ ╚═════╝ ╚══════╝
 =============================================`);
\ No newline at end of file
diff --git a/languages/en.yml b/languages/en.yml
index f15825d..401bc45 100644
--- a/languages/en.yml
+++ b/languages/en.yml
@@ -25,6 +25,8 @@ article:
     read: 'read'
     about: 'About'
     words: 'words'
+plugin:
+    backtotop: 'Back to Top'
 search:
     search: 'Search'
     hint: 'Type something...'
diff --git a/languages/zh-CN.yml b/languages/zh-CN.yml
index 079c78d..b3fadda 100644
--- a/languages/zh-CN.yml
+++ b/languages/zh-CN.yml
@@ -25,6 +25,8 @@ article:
     read: '读完'
     about: '大约'
     words: '个字'
+plugin:
+    backtotop: '回到顶端'
 search:
     search: '搜索'
     hint: '想要查找什么...'
diff --git a/layout/common/navbar.ejs b/layout/common/navbar.ejs
index 935dc1a..27b6b0e 100644
--- a/layout/common/navbar.ejs
+++ b/layout/common/navbar.ejs
@@ -1,6 +1,6 @@
 <nav class="navbar navbar-main">
     <div class="container">
-        <div class="navbar-brand">
+        <div class="navbar-brand is-flex-center">
             <a class="navbar-item navbar-logo" href="<%- url_for('/') %>">
             <% if (has_config('logo.text') && get_config('logo.text')) { %>
                 <%= get_config('logo.text') %>
diff --git a/layout/common/paginator.ejs b/layout/common/paginator.ejs
index d6d2f6f..9940d18 100644
--- a/layout/common/paginator.ejs
+++ b/layout/common/paginator.ejs
@@ -34,10 +34,10 @@ function pagination(c, m) {
 <div class="card card-transparent">
     <nav class="pagination is-centered" role="navigation" aria-label="pagination">
         <div class="pagination-previous<%= page.current > 1 ? '' : ' is-invisible is-hidden-mobile' %>">
-            <a class="has-text-black-ter" href="<%= link_url(page.current - 1) %>"><%= __('common.prev') %></a>
+            <a class="is-flex-grow has-text-black-ter" href="<%= link_url(page.current - 1) %>"><%= __('common.prev') %></a>
         </div>
         <div class="pagination-next<%= page.current < page.total ? '' : ' is-invisible is-hidden-mobile' %>">
-            <a class="has-text-black-ter" href="<%= link_url(page.current + 1) %>"><%= __('common.next') %></a>
+            <a class="is-flex-grow has-text-black-ter" href="<%= link_url(page.current + 1) %>"><%= __('common.next') %></a>
         </div>
         <ul class="pagination-list is-hidden-mobile">
             <% pagination(page.current, page.total).forEach(element => { %>
diff --git a/layout/plugin/back-to-top.ejs b/layout/plugin/back-to-top.ejs
new file mode 100644
index 0000000..aff510e
--- /dev/null
+++ b/layout/plugin/back-to-top.ejs
@@ -0,0 +1,26 @@
+<% if (plugin !== false) { %>
+<% if (!head) { %>
+<div id="back-to-top" class="is-flex is-flex-center is-hidden-tablet">
+    <i class="material-icons">keyboard_arrow_up</i>
+    <span class="is-size-7">
+        <%= __('plugin.backtotop') %></span>
+</div>
+<script>
+    $(document).ready(function () {
+        var lastScrollTop = 0;
+        $(window).scroll(function (event) {
+            var scrollTop = $(this).scrollTop();
+            if (scrollTop > lastScrollTop || scrollTop === 0) {
+                $('#back-to-top').removeClass('is-active');
+            } else {
+                $('#back-to-top').addClass('is-active');
+            }
+            lastScrollTop = scrollTop;
+        });
+        $('#back-to-top').on('click', function () {
+            $('body, html').animate({ scrollTop: 0 }, 400);
+        });
+    });
+</script>
+<% } %>
+<% } %>
\ No newline at end of file
diff --git a/source/css/style.styl b/source/css/style.styl
index dee40e7..641cada 100644
--- a/source/css/style.styl
+++ b/source/css/style.styl
@@ -52,8 +52,6 @@ img.thumbnail
 
 .navbar-main
     box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05)
-    .navbar-brand
-        justify-content: center
     .navbar-menu,
     .navbar-start,
     .navbar-end
@@ -162,6 +160,21 @@ img.thumbnail
                 margin-left: 0.75rem
                 margin-right: 0
 
+#back-to-top
+    position: fixed
+    bottom: 0
+    left: 0
+    right: 0
+    text-align: center
+    background: white
+    box-shadow: 0 -1px 8px rgba(0,0,0,0.1)
+    padding: 8px 0
+    line-height: 24px
+    transform: translateY(100px)
+    transition: 0.4s ease
+    &.is-active
+        transform: translateY(0)
+
 /* ---------------------------------
  *         Custom modifiers
  * --------------------------------- */
@@ -180,9 +193,15 @@ img.thumbnail
 .is-overflow-x-auto
     overflow-x: auto !important
 
+.is-flex-grow
+    flex-grow: 1 !important
+
 .is-flex-wrap
     flex-wrap: wrap !important
 
+.is-flex-start
+    justify-content: start !important
+
 .is-flex-center
     justify-content: center !important
 
@@ -260,7 +279,7 @@ img.thumbnail
 figure.highlight
     padding: 0
     width: 100%
-    margin: 0 0 1.5rem
+    margin: 1em 0 1em !important
 
     pre,
     table tr:hover
diff --git a/source/images/favicon.svg b/source/images/favicon.svg
new file mode 100644
index 0000000..32a8683
--- /dev/null
+++ b/source/images/favicon.svg
@@ -0,0 +1,6 @@
+<svg
+    xmlns="http://www.w3.org/2000/svg" version="1.1" width="256" height="256" viewbox="0 0 949 256">
+    <path fill="#2366d1" d="M110.85125168440814 128L221.70250336881628 192L110.85125168440814 256L0 192Z"/>
+    <path fill="#609dff" d="M110.85125168440814 64L221.70250336881628 128L110.85125168440814 192L0 128Z"/>
+    <path fill="#a4c7ff" d="M110.85125168440814 0L221.70250336881628 64L110.85125168440814 128L0 64Z"/>
+</svg>
\ No newline at end of file
diff --git a/source/js/main.js b/source/js/main.js
index fe45b24..9e7b05a 100644
--- a/source/js/main.js
+++ b/source/js/main.js
@@ -14,4 +14,15 @@
             $(this).text(moment($(this).attr('datetime')).fromNow());
         });
     }
+
+    function adjustNavbar() {
+        const navbarWidth = $('.navbar-main .navbar-start').outerWidth() + $('.navbar-main .navbar-end').outerWidth();
+        if ($(document).outerWidth() < navbarWidth) {
+            $('.navbar-main .navbar-menu').addClass('is-flex-start');
+        } else {
+            $('.navbar-main .navbar-menu').removeClass('is-flex-start');
+        }
+    }
+    adjustNavbar();
+    $(window).resize(adjustNavbar);
 })(jQuery);