Use clear_both class and some slim converts

app/overrides/welcome/index.rb

@@ -12,4 +12,4 @@ Deface::Override.new virtual_path: 'welcome/index',
                      name:         'remove-welcome-news',
                      replace:      'div.news',
                      original:     '163f5df8f0cb2d5009d7f57ad38174ed29201a1a',
-                     partial:      'welcome/remove_news'
+                     partial:      'welcome/overview_news'

app/views/admin/_system_info.html.slim

@@ -1,11 +1,11 @@
-table class="list"
+table.list
   tr class="#{cycle('odd', 'even')}"
-    td class="name"
+    td.name
       = "#{l(:label_system_info)}:"
-    td class="name"
+    td.name
       = system_info
   tr class="#{cycle('odd', 'even')}"
-    td class="name"
+    td.name
       = "#{l(:label_uptime)}:"
-    td class="name"
+    td.name
       = system_uptime

app/views/projects/_members_box.html.erb

@@ -1,14 +0,0 @@
-<%
-if @users_by_role.any?
-  view_roles = memberbox_view_roles
-  if view_roles.count>0
-%>
-    <div class="members box">
-    <h3><%=l(:label_member_plural)%></h3>
-    <p><% view_roles.each do |role| %>
-    <%=h role %>: <%= @users_by_role[role].sort.collect{|u| link_to_user u}.join(", ").html_safe %><br />
-    <% end %></p>
-  </div>
-<% end %>
-
-<% end %>

app/views/projects/_members_box.html.slim

@@ -0,0 +1,11 @@
+- if @users_by_role.any?
+  - view_roles = memberbox_view_roles
+  - if view_roles.count>0
+      .members.box
+        h3 = l(:label_member_plural)
+        p
+          - view_roles.each do |role|
+            = h role
+            ' :
+            = @users_by_role[role].sort.collect{|u| link_to_user u}.join(', ').html_safe
+            br

app/views/projects/_project_overview.html.slim

@@ -1,4 +1,4 @@
 - project_overview_content = Additionals.settings[:project_overview_content]
 - if project_overview_content.present?
-  .project-content class="wiki box"
+  .project-content.wiki.box
     = textilizable(project_overview_content)

app/views/welcome/_overview_bottom.html.erb

@@ -1,9 +0,0 @@
-<%
-overview_bottom = Additionals.settings[:overview_bottom]
-unless overview_bottom.blank?
-%>
-<div style="clear: both;"></div>
-<div class="overview-bottom wiki box">
-  <%= textilizable(overview_bottom) %>
-</div>
-<% end %>

app/views/welcome/_overview_bottom.html.slim

@@ -0,0 +1,5 @@
+- overview_bottom = Additionals.settings[:overview_bottom]
+- unless overview_bottom.blank?
+    .clear_both
+    .overview-bottom.wiki.box
+      = textilizable(overview_bottom)

app/views/welcome/_overview_news.html.slim

@@ -0,0 +1,5 @@
+- unless Additionals.setting?(:remove_news)
+  .news.box
+    h3 = l(:label_news_latest)
+    = render partial: 'news/news', collection: @news
+    = link_to l(:label_news_view_all), news_index_path

app/views/welcome/_overview_right.html.erb

@@ -1,8 +0,0 @@
-<%
-overview_right = Additionals.settings[:overview_right]
-unless overview_right.blank?
-%>
-<div class="overview-right wiki box">
-  <%= textilizable(overview_right) %>
-</div>
-<% end %>

app/views/welcome/_overview_right.html.slim

@@ -0,0 +1,4 @@
+- overview_right = Additionals.settings[:overview_right]
+- unless overview_right.blank?
+    .overview-right.wiki.box
+      = textilizable(overview_right)

app/views/welcome/_overview_top.html.erb

@@ -1,8 +0,0 @@
-<%
-overview_top = Additionals.settings[:overview_top]
-unless overview_top.blank?
-%>
-<div class="overview-top wiki box">
-  <%= textilizable(overview_top) %>
-</div>
-<% end %>

app/views/welcome/_overview_top.html.slim

@@ -0,0 +1,4 @@
+- overview_top = Additionals.settings[:overview_top]
+- unless overview_top.blank?
+    .overview-top.wiki.box
+      = textilizable(overview_top)

app/views/welcome/_remove_news.html.erb

@@ -1,9 +0,0 @@
-<% unless Additionals.setting?(:remove_news) %>
-
-  <div class="news box">
-  <h3><%=l(:label_news_latest)%></h3>
-    <%= render :partial => 'news/news', :collection => @news %>
-    <%= link_to l(:label_news_view_all), :controller => 'news' %>
-  </div>
-
-<% end %>

assets/stylesheets/additionals.css

@@ -149,6 +149,8 @@
   background-image: url(../images/smileys/failure-frame.png);
 }
 
+div.clear_both { clear: both; }
+
 /* TAGs */
 
 ul.tags {