diff --git a/_config.yml b/_config.yml
index e0c1b98..17f3302 100755
--- a/_config.yml
+++ b/_config.yml
@@ -13,6 +13,15 @@ logo:
 footer:
   copyright_text: 'Free Jekyll theme by <a class="zerostatic" href="https://www.zerostatic.io">www.zerostatic.io</a>'
 
+seo:
+  meta_og_type: "website"
+  meta_og_url: "https://jekyll-serif-theme.netlify.app"
+  meta_og_image: "https://raw.githubusercontent.com/JugglerX/jekyll-serif-theme/master/images/tn.png"
+  meta_og_description: "Jekyll Serif is a modern business theme for Hugo. It contains content types for the archetypical business website. The theme is fully responsive, blazing fast and artfully illustrated."
+  meta_twitter_card: "summary"
+  meta_twitter_site: "@zerostaticio"
+  meta_twitter_creator: "@zerostaticio"
+
 collections:
   services:
     output: true
@@ -37,4 +46,3 @@ sass:
 
 plugins:
   - jekyll-environment-variables
-
diff --git a/_includes/footer.html b/_includes/footer.html
index 7c892e3..3cf4d09 100644
--- a/_includes/footer.html
+++ b/_includes/footer.html
@@ -8,7 +8,7 @@
             {% assign footermenu = site.data.menus.footer | sort: 'weight'  %}
             {% for item in footermenu %}
             <li class="{% if item.url == page.url %}active{% endif %}">
-              <a href="{{ item.url }}">{{ item.name }}</a>
+              <a href="{{ item.url | relative_url }}">{{ item.name }}</a>
             </li>
             {% endfor %}
           </ul>
diff --git a/_includes/hamburger.html b/_includes/hamburger.html
index a6d7de9..eeff587 100644
--- a/_includes/hamburger.html
+++ b/_includes/hamburger.html
@@ -1,4 +1,4 @@
-<button id="toggle-main-menu-mobile" class="hamburger hamburger--slider" type="button">
+<button id="toggle-main-menu-mobile" class="hamburger hamburger--slider" type="button" aria-label="Mobile Menu">
   <span class="hamburger-box">
     <span class="hamburger-inner"></span>
   </span>
diff --git a/_includes/main-menu.html b/_includes/main-menu.html
index 86ad1b6..ca30907 100644
--- a/_includes/main-menu.html
+++ b/_includes/main-menu.html
@@ -3,7 +3,7 @@
   <ul>
     {% for item in mainmenu %}
     <li class="{% if item.url == page.url %}active{% endif %}">
-      <a href="{{ item.url }}">{{ item.name }}</a>
+      <a href="{{ item.url | relative_url }}">{{ item.name }}</a>
     </li>
     {% endfor %}
   </ul>
diff --git a/_layouts/default.html b/_layouts/default.html
index f706b54..cbe7598 100755
--- a/_layouts/default.html
+++ b/_layouts/default.html
@@ -7,6 +7,17 @@
   <link rel="icon" type="image/png" href="{{ '/images/favicon-32x32.png' | relative_url }}">
   <link href="https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;700&display=swap" rel="stylesheet">
   <link href="{{ '/assets/css/style.css' | relative_url }}" rel="stylesheet">
+  {% if page.description %}
+  <meta name="description" content="{{ page.description }}" />
+  {% endif %}
+  <meta property="og:title" content="{{ site.seo.meta_og_title }}" />
+  <meta property="og:type" content="{{ site.seo.meta_og_type }}" />
+  <meta property="og:url" content="{{ site.seo.meta_og_url }}" />
+  <meta property="og:image" content="{{ site.seo.meta_og_image }}" />
+  <meta property="og:description" content="{{ site.seo.meta_og_description }}" />
+  <meta name="twitter:card" content="{{ site.seo.meta_twitter_card }}" />
+  <meta name="twitter:site" content="{{ site.seo.meta_twitter_site }}" />
+  <meta name="twitter:creator" content="{{ site.seo.meta_twitter_creator }}" />
 </head>
 <body class='page {{page.bodyClass}}'>
   {% include main-menu-mobile.html %}
diff --git a/assets/css/style.scss b/assets/css/style.scss
index 29eb182..7cec731 100755
--- a/assets/css/style.scss
+++ b/assets/css/style.scss
@@ -3,7 +3,7 @@
 ---
 
 // Colors
-$primary: #ec605b;
+$primary: #E5261F;
 $secondary: #f88379;
 $black: #2f2f41;
 $white: #ffffff;
diff --git a/index.md b/index.md
index 2b883f2..a8a7f94 100755
--- a/index.md
+++ b/index.md
@@ -1,6 +1,7 @@
 ---
 layout: home
 title: Jekyll Serif Theme
+description: Jekyll Serif contains content types for a typical business website. The theme is fully responsive, blazing fast and artfully illustrated.
 intro_image: "images/pixeltrue-plan-1.svg"
 intro_image_absolute: true
 intro_image_hide_on_mobile: true
