Fix css on markdown toolbar header

app/assets/stylesheets/framework/markdown_area.scss

@@ -83,6 +83,7 @@
   li.md-header-toolbar {
     margin-left: auto;
     display: none;
+    padding-bottom: $gl-padding-8;
 
     &.active {
       display: block;
@@ -92,8 +93,8 @@
         display: flex;
         justify-content: center;
         width: 100%;
-        padding-top: $gl-padding-top;
-        padding-bottom: $gl-padding-top;
+        flex-wrap: wrap;
+        margin-top: $gl-padding-8;
       }
     }
   }

app/assets/stylesheets/framework/secondary_navigation_elements.scss

@@ -14,7 +14,6 @@
     a,
     button {
       padding: $gl-padding-8;
-      padding-bottom: $gl-padding-8 + 1;
       font-size: 14px;
       line-height: 28px;
       color: $gl-text-color-secondary;

app/assets/stylesheets/pages/note_form.scss

@@ -54,7 +54,7 @@
 
 .common-note-form {
   .md-area {
-    padding: $gl-padding-top $gl-padding;
+    padding: $gl-padding-8 $gl-padding;
     border: 1px solid $border-color;
     border-radius: $border-radius-base;
     transition: border-color ease-in-out 0.15s,