diff --git a/app/assets/stylesheets/layout.scss b/app/assets/stylesheets/layout.scss
index c3dded973..b91c2ba80 100644
--- a/app/assets/stylesheets/layout.scss
+++ b/app/assets/stylesheets/layout.scss
@@ -1550,7 +1550,7 @@ table {
 
     .comment-votes {
       color: $text-medium;
-      font-size: rem-calc(14);
+      font-size: $small-font-size;
       line-height: $line-height;
 
       a {
@@ -1560,12 +1560,21 @@ table {
 
         &:hover {
           color: $text-medium;
+          text-decoration: none;
+
+          .icon-like {
+            color: $like;
+          }
+
+          .icon-unlike {
+            color: $unlike;
+          }
         }
       }
 
       [class^="icon-"] {
-        font-size: rem-calc(20);
-        vertical-align: middle;
+        font-size: $base-font-size;
+        vertical-align: sub;
       }
     }
 
@@ -1685,7 +1694,8 @@ table {
 }
 
 .flag-disable, .flag-active {
-  vertical-align: middle;
+  line-height: 0;
+  vertical-align: sub;
 }
 
 .flag-disable {
diff --git a/app/views/comments/_votes.html.erb b/app/views/comments/_votes.html.erb
index 0de92a675..93af5b2dd 100644
--- a/app/views/comments/_votes.html.erb
+++ b/app/views/comments/_votes.html.erb
@@ -6,13 +6,17 @@
     <span class="in_favor">
       <% if can?(:vote, comment) %>
         <%= link_to vote_comment_path(comment, value: 'yes'),
-            method: "post", remote: true do %>
-            <span class="icon-angle-up">
+            method: "post", remote: true, title: t('votes.agree') do %>
+            <span class="icon-like">
               <span class="sr-only"><%= t('votes.agree') %></span>
             </span>
         <% end %>
       <% else %>
-        <span class="icon-angle-up"></span>
+        <%= link_to new_user_session_path do %>
+          <span class="icon-like">
+            <span class="sr-only"><%= t('votes.agree') %></span>
+          </span>
+        <% end %>
       <% end %>
       <%= comment.total_likes %>
     </span>
@@ -20,13 +24,15 @@
     <span class="against">
       <% if can?(:vote, comment) %>
         <%= link_to vote_comment_path(comment, value: 'no'),
-            method: "post", remote: true do %>
-            <span class="icon-angle-down">
+            method: "post", remote: true, title: t('votes.disagree') do %>
+            <span class="icon-unlike">
               <span class="sr-only"><%= t('votes.disagree') %></span>
             </span>
         <% end %>
       <% else %>
-        <span class="icon-angle-down"></span>
+        <span class="icon-unlike">
+          <span class="sr-only"><%= t('votes.disagree') %></span>
+        </span>
       <% end %>
       <%= comment.total_dislikes %>
     </span>
@@ -40,26 +46,40 @@
       <span class="in_favor">
         <% if can?(:vote, comment) %>
           <%= link_to vote_comment_path(comment, value: 'yes'),
-              method: "post", remote: true do %>
-              <span class="icon-angle-up"></span>
+              method: "post", remote: true, title: t('votes.agree') do %>
+              <span class="icon-like">
+                <span class="sr-only"><%= t('votes.agree') %></span>
+              </span>
           <% end %>
         <% else %>
-          <span class="icon-angle-up"></span>
+          <%= link_to new_user_session_path do %>
+            <span class="icon-like">
+              <span class="sr-only"><%= t('votes.agree') %></span>
+            </span>
+          <% end %>
         <% end %>
         <%= comment.total_likes %>
       </span>
+
       <span class="against">
         <% if can?(:vote, comment) %>
           <%= link_to vote_comment_path(comment, value: 'no'),
-              method: "post", remote: true do %>
-              <span class="icon-angle-down"></span>
+              method: "post", remote: true, title: t('votes.disagree') do %>
+              <span class="icon-unlike">
+                <span class="sr-only"><%= t('votes.disagree') %></span>
+              </span>
           <% end %>
         <% else %>
-          <span class="icon-angle-down"></span>
+          <%= link_to new_user_session_path do %>
+            <span class="icon-unlike">
+              <span class="sr-only"><%= t('votes.disagree') %></span>
+            </span>
+          <% end %>
         <% end %>
         <%= comment.total_dislikes %>
       </span>
-     </div>
+    </div>
+
     <div class="participation-not-allowed" style='display:none' aria-hidden="false">
       <%= t("votes.comment_unauthenticated",
         signin: link_to(t("votes.signin"), new_user_session_path),