diff --git a/app/views/homework_common/_homework_search_form.html.erb b/app/views/homework_common/_homework_search_form.html.erb
index 7dbcc61bf..d03e45891 100644
--- a/app/views/homework_common/_homework_search_form.html.erb
+++ b/app/views/homework_common/_homework_search_form.html.erb
@@ -1,4 +1,4 @@
 <%= form_tag(homework_common_index_path(:course => @course.id, :order => @order), :remote => true , :method => 'get', :id => 'resource_search_form') do %>
     <input type="text" name="search" placeholder="输入作业名称进行搜索" class="task-form-100 panel-box-sizing" id="homework_name_search" value="<%= @search %>" />
-    <a href="javascript:void(0);" onfocus = 'this.blur();' onclick="$('#resource_search_form').submit();" class="edu-btn-search font-16 color-grey mt5"><i class="fa fa-search"></i></a>
+    <a href="javascript:void(0);" onfocus = 'this.blur();' onclick="$('#resource_search_form').submit();" class="edu-btn-search font-16 color-grey mt8"><i class="fa fa-search"></i></a>
 <% end %>
\ No newline at end of file