diff --git a/doc/_themes/odoodoc/static/style.css b/doc/_themes/odoodoc/static/style.css
index 19f5270109e..2a1ffc31f84 100644
--- a/doc/_themes/odoodoc/static/style.css
+++ b/doc/_themes/odoodoc/static/style.css
@@ -6709,6 +6709,74 @@ td.field-body > ul {
 .descclassname {
   opacity: 0.5;
 }
+.index-tree ul,
+.index-tree li {
+  list-style: none;
+  padding: 0;
+  margin: 0;
+}
+.index-tree > ul > li {
+  margin-bottom: 0.5em;
+}
+.index-tree > ul > li > a {
+  font-family: Lato, Arial, sans-serif;
+  font-weight: 500;
+  line-height: 1.1;
+  color: inherit;
+  margin-top: 20px;
+  margin-bottom: 10px;
+  font-size: 24px;
+  text-align: center;
+}
+.index-tree > ul > li > a small,
+.index-tree > ul > li > a .small {
+  font-weight: normal;
+  line-height: 1;
+  color: #777777;
+}
+.index-tree > ul > li > a small,
+.index-tree > ul > li > a .small {
+  font-size: 65%;
+}
+.index-tree > ul > li > ul {
+  display: -webkit-flex;
+  display: flex;
+  -webkit-flex-wrap: wrap;
+  flex-wrap: wrap;
+}
+.index-tree > ul > li > ul > li {
+  width: 50%;
+}
+.index-tree > ul > li > ul > li a {
+  font-family: Lato, Arial, sans-serif;
+  font-weight: 500;
+  line-height: 1.1;
+  color: inherit;
+  margin-top: 10px;
+  margin-bottom: 10px;
+  font-size: 18px;
+  padding-left: 10%;
+  padding-right: 10%;
+}
+.index-tree > ul > li > ul > li a small,
+.index-tree > ul > li > ul > li a .small {
+  font-weight: normal;
+  line-height: 1;
+  color: #777777;
+}
+.index-tree > ul > li > ul > li a small,
+.index-tree > ul > li > ul > li a .small {
+  font-size: 75%;
+}
+.index-tree > ul > li a {
+  display: block;
+  color: #a24689 !important;
+  padding: 0.3em 0;
+  margin: 3px !important;
+}
+.index-tree > ul > li a:hover {
+  background-color: #eeeeee;
+}
 .stripe .section {
   margin-bottom: 2em;
 }
diff --git a/doc/_themes/odoodoc/static/style.less b/doc/_themes/odoodoc/static/style.less
index 719fa6f10e3..1b71b6aaebc 100644
--- a/doc/_themes/odoodoc/static/style.less
+++ b/doc/_themes/odoodoc/static/style.less
@@ -547,6 +547,44 @@ td.field-body {
   opacity: 0.5;
 }
 
+
+.index-tree {
+  ul, li {
+    list-style: none;
+    padding: 0;
+    margin: 0;
+  }
+  > ul > li {
+    margin-bottom: 0.5em;
+    > a {
+      .h3();
+      text-align: center;
+    }
+    > ul {
+      display: -webkit-flex;
+      display: flex;
+      -webkit-flex-wrap: wrap;
+      flex-wrap: wrap;
+      > li {
+        width: 50%;
+        a {
+          .h4();
+          padding-left: 10%;
+          padding-right: 10%;
+        }
+      }
+    }
+    a {
+      display: block;
+      color: @link-color !important;
+      padding: 0.3em 0;
+      margin: 3px !important;
+      &:hover {
+        background-color: @gray-lighter;
+      }
+    }
+  }
+}
 // STRIPE-STYLE PAGES
 .stripe {
   .section {
diff --git a/doc/index.rst b/doc/index.rst
index 0cd25cdd904..2f26c3abaa5 100644
--- a/doc/index.rst
+++ b/doc/index.rst
@@ -6,6 +6,7 @@ Welcome to the Odoo developer documentation.
 
 .. todo:: what's the documentation's license?
 
+.. rst-class:: index-tree
 .. titlesonly breaks level 3 (~in-document) toc of left navbar, so use
    maxdepth instead
 .. toctree::