diff --git a/addons/mail/static/src/components/activity_mark_done_popover/activity_mark_done_popover.scss b/addons/mail/static/src/components/activity_mark_done_popover/activity_mark_done_popover.scss
index 3479ffc31a1..f983fcff5e4 100644
--- a/addons/mail/static/src/components/activity_mark_done_popover/activity_mark_done_popover.scss
+++ b/addons/mail/static/src/components/activity_mark_done_popover/activity_mark_done_popover.scss
@@ -2,19 +2,6 @@
 // Layout
 // ------------------------------------------------------------------
 
-.o_ActivityMarkDonePopover {
-    min-height: 100px;
-}
-
-.o_ActivityMarkDonePopover_buttons {
-    margin-top: map-get($spacers, 2);
-}
-
-.o_ActivityMarkDonePopover_doneButton {
-    margin: map-get($spacers, 0) map-get($spacers, 2);
-}
-
 .o_ActivityMarkDonePopover_feedback {
     min-height: 70px;
 }
-
diff --git a/addons/mail/static/src/components/activity_mark_done_popover/activity_mark_done_popover.xml b/addons/mail/static/src/components/activity_mark_done_popover/activity_mark_done_popover.xml
index c0e34cccbf3..de44eea60d7 100644
--- a/addons/mail/static/src/components/activity_mark_done_popover/activity_mark_done_popover.xml
+++ b/addons/mail/static/src/components/activity_mark_done_popover/activity_mark_done_popover.xml
@@ -4,13 +4,13 @@
     <t t-name="mail.ActivityMarkDonePopover" owl="1">
         <div class="o_ActivityMarkDonePopover" t-attf-class="{{ className }}" t-on-keydown="activityMarkDonePopoverView and activityMarkDonePopoverView.onKeydown" t-ref="root">
             <t t-if="activityMarkDonePopoverView">
-                <textarea class="form-control o_ActivityMarkDonePopover_feedback" rows="3" placeholder="Write Feedback" t-on-blur="activityMarkDonePopoverView.onBlur" t-ref="feedbackTextarea"/>
+                <textarea class="form-control o_ActivityMarkDonePopover_feedback mb-2" rows="3" placeholder="Write Feedback" t-on-blur="activityMarkDonePopoverView.onBlur" t-ref="feedbackTextarea"/>
                 <div class="o_ActivityMarkDonePopover_buttons">
                     <button type="button" class="o_ActivityMarkDonePopover_doneScheduleNextButton btn btn-sm btn-primary" t-on-click="activityMarkDonePopoverView.onClickDoneAndScheduleNext">
                         Done &amp; Schedule Next
                     </button>
                     <t t-if="activityMarkDonePopoverView.activityViewOwner.activity.chaining_type === 'suggest'">
-                        <button type="button" class="o_ActivityMarkDonePopover_doneButton btn btn-sm btn-primary" t-on-click="activityMarkDonePopoverView.onClickDone">
+                        <button type="button" class="o_ActivityMarkDonePopover_doneButton btn btn-sm btn-primary mx-2" t-on-click="activityMarkDonePopoverView.onClickDone">
                             Done
                         </button>
                     </t>