IE浏览器中：课程，竞赛，托管平台的主页不能正常显示

app/views/welcome/_link_to_another.html.erb

@@ -1,5 +1,5 @@
-<div class="clearfix"></div>
+
-<div class="linkother">
+<div class="linkother" style="margin-left: 30%; float: left">
   <a href="http://<%= Setting.host_name%>" class="link_other_item"><%=l(:label_projects_management_platform)%></a>
   <a href="http://<%= Setting.host_course%>" class="link_other_item"><%=l(:label_courses_management_platform)%></a>
   <a href="http://<%= Setting.host_contest%>" class="link_other_item"><%=l(:label_contests_management_platform)%></a>

app/views/welcome/_search_course.html.erb

@@ -49,10 +49,10 @@ form #search_type{
 <%= form_tag({controller: :welcome, action: :search }, method: :get) do %>
 <div class="project-search" style="float: right">
 	<div class='search_widget'>
-		<%= text_field_tag :q, nil, placeholder:'请输入要搜索的关键字',  :size => 27 %>
+		<%= text_field_tag :q, nil, placeholder:'请输入要搜索的关键字',  :size => 27, %>
-		<%= select_tag(:search_type, options_for_select(select_option) ) %>
+		<%= select_tag(:search_type, options_for_select(select_option), :style => "float:right" ) %>
 	</div>
 		<%#= hidden_field_tag 'project_type', project_type %>
-		<%= submit_tag l(:label_search), :class => "enterprise", :name => nil %>
+		<%= submit_tag l(:label_search), :class => "enterprise", :name => nil, :style => "float:right" %>
 		</div>	
 <% end %>	

app/views/welcome/_search_project.html.erb

@@ -29,7 +29,7 @@ form #search_type{
 	border-bottom-left-radius: 0px;
 	border-top-left-radius: 0px;
 	border-left: 1px outset #83A9A9;
-	margin-left: -4px;
+	margin-left: 0px;
 	-webkit-appearance: none;
 	-moz-appearance: none;
 	text-indent: 0.01px;
@@ -45,7 +45,7 @@ form #search_by
     border-bottom-left-radius: 0px;
     border-top-left-radius: 0px;
     border-left: 1px outset #83A9A9;
-    margin-left: -6px;
+    margin-left: 0px;
     -webkit-appearance: none;
     -moz-appearance: none;
     text-indent: 0.01px;
@@ -88,12 +88,13 @@ form #search_by
 <%= form_tag({controller: :welcome, action: :search }, method: :get) do %>
 <div class="project-search" style="float: right">
 	<div class='search_widget' >
-		<%= text_field_tag :q, nil, placeholder:'请输入要搜索的关键字',  :size => 27 %>
+
-        <input type="text" name="search_by_input" hidden="hidden;" id="search_by_input" value="0">
+		<%= text_field_tag :q, nil, placeholder:'请输入要搜索的关键字' %>
-		<%= select_tag(:search_type, options_for_select(select_option), :onchange => "searchTypeChange();" ) %>
+        <input type="text" name="search_by_input" style="display: none" id="search_by_input" value="0">
-        <%= select_tag(:search_by,options_for_select([["昵称","0"],["姓名","1"],["邮箱","2"]]), :onchange => "searchByChange();" )  %>
+		<%= select_tag(:search_type, options_for_select(select_option), :onchange => "searchTypeChange();", :style => "float:right" ) %>
+        <%= select_tag(:search_by,options_for_select([["昵称","0"],["姓名","1"],["邮箱","2"]]), :onchange => "searchByChange();",:style => "float:right" )  %>
 	</div>
 		<%#= hidden_field_tag 'project_type', project_type %>
-		<%= submit_tag l(:label_search), :class => "enterprise", :name => nil %>
+		<%= submit_tag l(:label_search), :class => "enterprise", :name => nil,:style =>"float: right; margin-left:3px;margin-top:2px" %>
 		</div>	
 <% end %>	

app/views/welcome/contest.html.erb

@@ -119,6 +119,7 @@
     }
 })();
 </script>
+<div>
 <div class='top_bar'>
   <%#= render partial: 'wei_xin' %>
 	<div class="main-content-bar" id="main-content-bar">
@@ -324,6 +325,7 @@
 
 
 <div class="clearfix"></div>
+</div>
 <%= render partial: 'link_to_another' %>
 
 

app/views/welcome/index.html.erb

@@ -71,7 +71,7 @@
 	<div class="d-p-projectlist-box">
 		<ul class="d-p-projectlist">
 			<% @projects.map do |project| %>
-			<li style="overflow:auto;word-break:break-all;height:100%;word-wrap: break-word;" class='<%= cycle("odd", "even") %>'>
+			<li style="overflow:hidden;word-break:break-all;height:100%;word-wrap: break-word;" class='<%= cycle("odd", "even") %>'>
 				<div style="float: left;">
 					<%= image_tag(get_project_avatar(project), :class => "avatar-4") %>
 				</div>