Use existing classes for display inline content

app/assets/stylesheets/framework/dropdowns.scss

@@ -355,12 +355,6 @@
   .dropdown-menu-content {
     padding: $dropdown-item-padding-y $dropdown-item-padding-x;
   }
-
-  .inline-content {
-    display: inline-block;
-    margin: 0;
-    padding: 0;
-  }
 }
 .droplab-dropdown {

app/views/projects/buttons/_download.html.haml

@@ -11,26 +11,26 @@
       %li.dropdown-bold-header= _('Download source code')
       %li.dropdown-menu-content
         %ul
-          %li.inline-content
+          %li.d-inline-block.m-0.p-0
             = link_to _('zip'), project_archive_path(project, id: tree_join(ref, archive_prefix), format: 'zip'), rel: 'nofollow', download: '', class: 'btn btn-primary btn-xs'
-          %li.inline-content
+          %li.d-inline-block.m-0.p-0
             = link_to _('tar.gz'), project_archive_path(project, id: tree_join(ref, archive_prefix), format: 'tar.gz'), rel: 'nofollow', download: '', class: 'btn btn-xs'
-          %li.inline-content
+          %li.d-inline-block.m-0.p-0
             = link_to _('tar.bz2'), project_archive_path(project, id: tree_join(ref, archive_prefix), format: 'tar.bz2'), rel: 'nofollow', download: '', class: 'btn btn-xs'
-          %li.inline-content
+          %li.d-inline-block.m-0.p-0
             = link_to _('tar'), project_archive_path(project, id: tree_join(ref, archive_prefix), format: 'tar'), rel: 'nofollow', download: '', class: 'btn btn-xs'
       - if directory?
         %li.separator
         %li.dropdown-bold-header= _('Download this directory')
         %li.dropdown-menu-content
           %ul
-            %li.inline-content
+            %li.d-inline-block.m-0.p-0
               = link_to _('zip'), project_archive_path(project, id: tree_join(ref, archive_prefix), path: @path, format: 'zip'), rel: 'nofollow', download: '', class: 'btn btn-primary btn-xs'
-            %li.inline-content
+            %li.d-inline-block.m-0.p-0
               = link_to _('tar.gz'), project_archive_path(project, id: tree_join(ref, archive_prefix), path: @path, format: 'tar.gz'), rel: 'nofollow', download: '', class: 'btn btn-xs'
-            %li.inline-content
+            %li.d-inline-block.m-0.p-0
               = link_to _('tar.bz2'), project_archive_path(project, id: tree_join(ref, archive_prefix), path: @path, format: 'tar.bz2'), rel: 'nofollow', download: '', class: 'btn btn-xs'
-            %li.inline-content
+            %li.d-inline-block.m-0.p-0
               = link_to _('tar'), project_archive_path(project, id: tree_join(ref, archive_prefix), path: @path, format: 'tar'), rel: 'nofollow', download: '', class: 'btn btn-xs'
       - if pipeline && pipeline.latest_builds_with_artifacts.any?
         %li.separator