diff --git a/addons/lunch/static/src/views/kanban.xml b/addons/lunch/static/src/views/kanban.xml
index 200f8520a7e..b25a68a46a9 100644
--- a/addons/lunch/static/src/views/kanban.xml
+++ b/addons/lunch/static/src/views/kanban.xml
@@ -4,7 +4,7 @@
         <div class="o_lunch_content d-flex flex-column h-100">
             <LunchDashboard openOrderLine.bind="openOrderLine"/>
 
-            <div class="overflow-auto">
+            <div class="overflow-auto border-top border-bottom">
                 <t t-call="web.KanbanRenderer"/>
             </div>
         </div>
diff --git a/addons/mail/static/src/discuss_app/discuss.xml b/addons/mail/static/src/discuss_app/discuss.xml
index cfe2ed1cfab..4798502c675 100644
--- a/addons/mail/static/src/discuss_app/discuss.xml
+++ b/addons/mail/static/src/discuss_app/discuss.xml
@@ -2,7 +2,7 @@
 <templates xml:space="preserve">
 
 <t t-name="mail.Discuss" owl="1">
-    <div class="o-mail-Discuss d-flex h-100 flex-grow-1" t-att-class="{ 'flex-column align-items-center bg-view': store.isSmall }" t-ref="root">
+    <div class="o-mail-Discuss d-flex h-100 flex-grow-1 border-top" t-att-class="{ 'flex-column align-items-center bg-view': store.isSmall }" t-ref="root">
         <div t-if="store.isSmall and store.discuss.activeTab === 'mailbox'" class="w-100 border-bottom" t-call="mail.Discuss.mobileTopbar" t-ref="mobileTopbar"/>
         <div t-if="thread and !(store.isSmall and ['chat', 'channel'].includes(store.discuss.activeTab))" class="o-mail-Discuss-content d-flex flex-column h-100 w-100 bg-view overflow-auto" t-ref="content">
             <div class="o-mail-Discuss-header px-3 bg-100 border-bottom d-flex flex-shrink-0" style="height:42px;">
diff --git a/addons/web/static/src/scss/primary_variables.scss b/addons/web/static/src/scss/primary_variables.scss
index f42537ce803..e3b91a71c83 100644
--- a/addons/web/static/src/scss/primary_variables.scss
+++ b/addons/web/static/src/scss/primary_variables.scss
@@ -214,9 +214,9 @@ $o-card-body-bg-opacity: 0.9 !default;
 
 // Border-radius
 
-$o-border-radius: .25rem !default;
-$o-border-radius-lg: .6rem !default;
-$o-border-radius-sm: .2rem !default;
+$o-border-radius: o-to-rem(4px) !default;
+$o-border-radius-sm: o-to-rem(3px) !default;
+$o-border-radius-lg: o-to-rem(6px) !default;
 
 // touch
 $o-touch-btn-padding: 7px 14px !default;
diff --git a/addons/web/static/src/search/search_panel/search_panel.scss b/addons/web/static/src/search/search_panel/search_panel.scss
index 93d848ab09d..7e5dd5ad550 100644
--- a/addons/web/static/src/search/search_panel/search_panel.scss
+++ b/addons/web/static/src/search/search_panel/search_panel.scss
@@ -23,6 +23,10 @@
 .o_search_panel {
     width: var(--SearchPanel-width, #{$o-search-panel-width});
     font-size: var(--SearchPanel-fontSize, #{$o-search-panel-font-size});
+    
+    @include media-breakpoint-up(md) {
+        border-right: $border-width solid $border-color;
+    }
 
     .o_search_panel_category_value,
     .o_search_panel_filter_value input,
diff --git a/addons/website/static/src/client_actions/website_preview/website_preview.xml b/addons/website/static/src/client_actions/website_preview/website_preview.xml
index db0c9c8a690..d4b2bc8b9b6 100644
--- a/addons/website/static/src/client_actions/website_preview/website_preview.xml
+++ b/addons/website/static/src/client_actions/website_preview/website_preview.xml
@@ -12,7 +12,8 @@
     <div class="o_website_preview" t-ref="container"
          t-att-class="{ 'editor_enable editor_has_snippets': this.websiteContext.snippetsLoaded,
                         'o_is_blocked': this.blockedState.isBlocked,
-                        'o_is_mobile': this.websiteContext.isMobile }">
+                        'o_is_mobile': this.websiteContext.isMobile,
+                        'border-top': !this.websiteContext.snippetsLoaded }">
         <BlockPreview t-if="this.blockedState.showLoader"/>
         <div class="o_iframe_container">
             <iframe t-if="!testMode"